Abstract
The previous studies on the Elamite pottery generally focused on the form and shape of the artifacts. From the perspective of fabric, very few studies have explored the Elamite pottery. The pottery type studied in this paper is orange (ranging from light brown to red) composed of a tempering material, sand and white particles. The core of this no ornamented, wheel-built pottery is black. In an investigation to outline the scope and boundaries of Haft Tapeh ancient city, a number of the Elamite pottery samples were recovered in certain layers dating back to the late ancient Elam (Sukalmah) and the Middle Elamite near the adobe structures of Haft Tapeh. Haft Tapeh refers to a structure belonging to the Elamite Era located in Khuzestan and south of Susa. One major finding in this city is a tomb from the Middle Elamite Era. Since 1965, this building has been investigated by Negahban and later by Mofidi-Nasr abadi. Thus, Haft Tapeh can undoubtedly be considered a city belonging to the Elamite Era. In this light, the pottery type in this geographical scope can be particularly useful for comparison of similar artifacts found in Isfahan and Chaharmahal and Bakhtiari, both of which could be associated with the Elamite Era. This study focused on Asgaran and Saba as two regions in Isfahan and central part of Ardal in Chaharmahal and Bakhtiari. A total of 10 pottery samples were randomly selected from these regions. They were then compared in terms of fabric and composition against 4 counterparts found in archaeological layers of Haft Tapeh belonging to the Elamite Era. It should be noted that the two-color body in the pottery sample is not at all associated with the type of compounds or curing temperature, Since the two parts are identical in terms of composition. Moreover, it seems that the main reason for the two-color body lies in the curing conditions and techniques (oxidation and reduction) inside the furnace, leading to two different colors. Apart from that, there is a kind of orientation in the components of pottery samples, potentially indicating they were built on wheels.
Keywords: Elam, Orange-Red Pottery, Petrography, XRD, Ft-IR.

Introduction
One of the surrounding regions cover the north of present-day provinces Fars and Khuzestan as Elamite centres in the ancient era. The noteworthy point about these regions is their potentially rich metal mines. This has been mentioned in the Mesopotamian inscriptions, mainly explaining the link between the Mesopotamian plain and the highlands of Elam. The present-day provinces, Khuzestan and Fars, have small potentials for metal mines. Hence, they only served as surrounding regions supplying the metals. However, little investigation has been done on the archaeological data from the Elamite Era. It is crucial to carry out a historical study on these regions along with the archaeological data to enlighten the dark spots in the Elamite Era, and ultimately provide a toponymy of the Elamite cities. One instance of such archaeological data involves various types of local pottery in Khuzestan (as a central city of Elam), which was compared through petrography against the samples recovered in Isfahan and Chaharmahal and Bakhtiari (as two dently the era in surrounding regions). Thus, this paper intends to discuss more con which this type of pottery was built and its origin in order to provide a toponymy of the previously mentioned cities based on historical and archaeological data. In Miankooh, Ardal, more than 76% of Elamite sites have been reported to be nomadic. This is highly important alongside the neighborhood of this province and Isfahan with regard to the toponymy of Zabshali and LU.SU. Meanwhile, there are a considerable number of pottery samples from this region comparable to their counterparts across the Elamite centers. 
The surrounding regions of Elamite centers (Susa and Anshan) have so far been rarely explored. One of such surrounding regions stretched across the norther of Elamite centers, covering certain areas of present-day provinces Isfahan and Chaharmahal and Bakhtiari. In addition, there are pottery samples from the Elamite Era found in Khuzestan (as one of the central districts of Elamite), even though they have rarely been explored in studies on the Elamite Era. This can be partly associated with the limited number of such pottery samples against their counterparts from the Elamite Era in Khuzestan. Nonetheless, the noteworthy point about this pottery type is the great similarity (discussed later) in Khuzestan to those recovered in Isfahan and Chaharmahal and Bakhtiari. Therefore, this study attempted to explore these regions from the Elamite Era through an interdisciplinary approach involving archeology, archeometry and history of northern Susa and Anshan. Despite the importance of the regions surrounding Elamite centers (Susa and Anshan) based on the Mesopotamian inscriptions, insufficient effort has so far been made to investigate the Elamite Era in Isfahan and Chaharmahal and Bakhtiari as two surrounding regions. Nevertheless, the pottery type studied in this paper has been frequently found in Isfahan and Chaharmahal and Bakhtiari. In this study, great effort was made to review the geographical locations of the two provinces in Elamite Era according to written sources and archaeological evidence. Moreover, the pottery artifacts were petrographically examined to find out whether or not the samples recovered in Haft Tapeh, as a key central spot in Khuzestan during the Elamite Era, are congruent with the clay artifacts found in Isfahan and Chaharmahal and Bakhtiari from the perspective of appearance and textural characteristics. In fact, the discussion revolves around the possible involvement and predominance of the Elamite in Isfahan and Chaharmahal and Bakhtiari, while providing a toponymy of ancient Elamite regions in those provinces today.

Conclusion
The specific pottery type in this study indicated a remarkable frequency in Isfahan and Chaharmahal and Bakhtiari. Moreover, it proved to be similar to counterparts recovered at Haft Tapeh (Khuzestan) in terms of fabric, production technique and curing temperature. It is essential to point out the pottery types across the northern Elamite centers which have been rarely explored so far. The specific pottery type examined in this paper can definitely be considered an Elamite artifact. It should originate from the Zagros Mountains in the north of Khuzestan (Bakhtiari highlands). That is perhaps why this type of pottery is less abundant in Khuzestan as opposed to Isfahan and Chaharmahal and Bakhtiari. According to the constituent element of pottery samples, this pottery type does not originate from Khuzestan Plain, but it can rather be traced in Zagros Mountains.  Therefore, it can be argued that the Elamite were involved in dominated Isfahan and Chaharmahal and Bakhtiari, while delving into the toponymy of Elamite cities such as Zabshali and Tukrish in certain parts of Isfahan and LU.SU in Chaharmahal and Bakhtiari. The regions never explored from that very perspective can set out a new avenue of Elamite research into these Iranian provinces. Finally, it is recommended that future studies focus on northern regions of Elamite centers including the present-day Isfahan, Yazd and Chaharmahal and Bakhtiariti so as to clarify many of the archaeological ambiguities of Elamite Era. After all, an in-depth investigation of Mesopotamian inscriptions can help scholars realize the importance of these regions, while revealing their archaeological capacities.

Abstract
The site of Narjuiyeh III is located on the eastern natural mounds of the Narjuiyeh village, from the west overlooking Halil River. Scattering of the fourth millennium BC, especially typical Aliabad type are visible on these mounds. Traces of illegal excavation are also available as pits and holes all over the site. Aliabad ceramics are pottery dating back to the fourth millennium BC (Chalcolithic) in the southeast of the Iranian plateau, first excavated and reported by Caldwell from Aliabad in Bardsir of Kerman, and then have been found and reported from fourth millennium layers of Tell Iblis (Iblis IV) which eventually became known as Aliabad Culture (Caldwell, 1967).      Ali-Abad culture potteries (Chalcolithic age) dates back to the 4th millennium BC in southeast of Iran which the distribution of its potteries include the regions of Kerman, Balouchistan and Pakistan. Aliabad pottery in the south-east of the Iranian plateau is one of the most important and prominent pottery types in the Chalcolithic period (Eskandari and Mollasalehi, 2017), which for more detail understanding about this culture in addition to archaeological studies, requires scientific archaeometric analysis and methods; therefore, the aim of the present study is to investigate, study and further understand the fourth millennium BC pottery of Aliabad culture from Jiroft’s Narjuiyeh III site and understanding the expansion of this culture by using structural and technical studies of pottery of this period. At the same time, it has been attempted to use the method of mineralogy (petrography) to get information about how to process the paste, clay type and used temper, conditions, heating and temperature of baking in the furnace, as well as the understanding of the origin of pottery of this area. Archaeological studies show that Aliabad culture in the southeast of the Iranian plateau was the dominant culture of the region in the fourth millennium BC. In this study, it has been attempted to obtain mineralogical information regarding pottery (Aliabad pottery) using library and thin section petrography studies. The polarized binocular microscope JamesSwift made in the United Kingdom at the Petrographic Laboratory of the Institute for Restoration and Conservation was used for microscopic study of the studied pottery.
Keywords: Archaeometry, Petrography, Aliabad Culture, Narjuiyeh in Jiroft, Southeast of Iran.

Introduction
From the textural point of view, the pottery was divided into two main categories of fine-grained and coarse-grained specimens. In fine-grained specimens, the components are less than 0.5 mm in size, and the components are finely crystallized in the texture of pottery. A group of pottery has immature silty texture. In the texture of these potteries, there are fragments of different sizes next to each other, and there is some clutter and disarrangement to the size of the minerals in the pottery. In terms of composition, all available pottery has the same composition and their difference are in the percentage of pieces in the pottery texture and their size. In all available ceramics, there are several minerals, including quartz, in the form of monocrystalline (monocrystalline) and polycrystalline, which are more abundant in monocrystalline form. This mineral has angular to semicircular margins indicating that quartz fragments have been added as secondary to the primary source. In some samples, minor amounts of plagioclase, pyroxene and amphibole with mica are observed. Mica minerals are mostly muscovite grains that are orange-colored, but sometimes orange-yellow muscovite grains can also be seen in the samples. This reaction is due to the change in the optical properties of the grains at a temperature of approximately 1000 degrees Celsius, which can be partially detected the temperature the pottery tolerated on during the heating process. In some samples igneous rock, chert and quartz rock fragments were used as fillers. In some pottery, calcite minerals can also be observed and used to detect its temperature range. Therefore, it can be concluded that due to the geology of the region and the presence of calcium carbonate in the sedimentary deposits of the region, the absence of calcite mineralization in some samples indicates that the temperature of the ceramics is higher than 800 °C, and in calcite-clay ceramics, the baking temperature of the clay is less than 800 °C (Reedy 2008; Riederer 2004). The two N9 and N7 specimens differ in composition from the other specimens. In these two samples calcite minerals are associated with the clay texture, whereas in the other samples this is not the case.

Conclusion
Based on the petrographic study of the pottery, it can be deduced that the source of the pottery studied was identical and their source material was from the same region in Kerman. However, the origin of manufacture and extracting of soil mines cannot be determined definitely, because the geology of the Kerman region is very large and vast especially the studied areas are in volcanic formations, which, the mineralogical composition and sequence of some of them are granite, granodiorite to quartz. Metamorphic, plagioclases, clinopyroxenes, and mica minerals and igneous and metamorphic rocks are within the geological family of the area, which exactly similar compounds can be found with the minerals in the pottery. There are also three different groups for these pottery: 1) Pottery with homogeneous texture. In this type of pottery, fragments and minerals are seen floating and scattering in the texture. 2) Pottery in the texture in addition to clay and fine minerals, phyllosilicate minerals (mica) exist in combination with the texture. 3) In these ceramics the combination of the texture of mineral carbonate calcium (calcite) together with the clay texture is visible, a situation not seen in the other samples. This indicates that the pottery used has different manufacturing techniques, therefore, several pottery makers have been involved in preparation and procurement of early paste and clay of the pottery. Pottery samples N5, N6, N7, N8 and N9 contain calcite minerals. It can be suggesting that the baking temperature of these pottery was less than 800 degrees Celsius. In the samples containing muscovite minerals, some of the grains show changes from orange to yellow, indicating that these ceramics have been sustain a temperature of approximately 950-1000 °C. Based on the results and even the buff-orange color of the ceramics, it should be noted that the analyzed pottery were baked in an oxidation condition and in a closed furnace. The type of baking and precision used in baking the pottery in high quality, especially the 4th millennium BC pottery, is very high, indicating that the technique used in baking pottery was also very professional. Some ceramics, such as (N1, N8, N9) have porphyry texture and in their texture quartz mineral, chert stone and igneous rock have been used as filler and temper. In most cases, the edges of quartz minerals are edged and sharp, which, indicates the use of primary soil and its paste processing and resultant of grinding of core and ore extractive mining because all fragments and sherds have sharp and angular angles as well. It should also be noted that there is no evidence of the use of organic materials as temper in pottery making.

Abstract
Due to its geology, topography and climate, the land of Iran is rough and unstable. Therefore, the historical monuments located on it are always loading and unstable conditions and therefore need continuous maintenance in a scientific and experimental way. Documenting or reading historical monuments is the most important part of studying antiquities, through which the data and information contained in these monuments can be accessed and using the collected data to understand the knowledge hidden in the engineering of this building. Lack of correct knowledge of the works and insufficient attention to the details and laws hidden in the historical works, leads to incorrect analysis and as a result wrong reading of the work. Which leads to misguidance in policies facing the preservation of monuments and as a result damage to cultural and historical heritage.
This article tries to analyze three incorrect readings of three famous historical works. The method of analysis in this paper is the use of analytical engineering and detailed analysis of the parameters of the effect and how to relate to them, which shows how a system was created and how it worked. And through this, it is concluded that a misreading of a historical collection leads to a misunderstanding of the function of that work, which can lead to errors in dealing with and preserving the work. The studied works include Pasargad site, Bostan arch complex and Biston complex. Each of these three historical sites contains elements for which scientists and archaeologists have defined the subject and application so far. Therefore, in this article, citing structural analyzes and causal relationships, it has been proven that the reading of these scientists is wrong and an attempt has been made to open a new perspective and path for exploring and recognizing these works.
Keywords: Totalitarianism and Analytical Engineering, Psargad, Taqbostan, Bistoon.

Introduction
Due to its location on the earth’s crust, the land of Iran has taken on special geological conditions such as youth and permanent activity of the earth’s crust. On the other hand, due to the local materials used in antiquity, most monuments are very heavy. Therefore, protection and nursing of a wide range of buildings that are in different conditions should be based on science and correct knowledge of the principles of structure, architecture and engineering in general. In order to achieve this goal, the correct processes must be mapped in advance.
If we want to pursue engineering reading or engineering documentation, which is the first and most important thing in identifying ancient science, we must have a correct understanding of engineering and its rules, including design and calculation.
Pathology and anthropology determine antiquity policies. This concept refers to the reading of antiquities. Therefore, in the proposed process for correct reading of antiquities, it is drawn on the basis that in the first step, we know what we should study and how to analyze it. So, the basic principles are based on two questions. “What?” and how?” In the following, these two concepts will be explained.
According to the principles of construction, according to the author, each monument can be divided into three basic parts. These include structural engineering, architecture and interior architecture. In each of these sections, pathology is examined and, in this regard, the mechanical properties of materials, load-bearing capacity, ductility and durability of materials are discussed.
The second step is how to analyze what we have found. Depending on the tools and advanced facilities, three types of engineering can be named. These include translation engineering, code engineering and analytical engineering

Discussion
Considering the concepts and scientific principles expressed in the concept of analytical engineering and the idea of a holistic view of antiquities, in the following, inaccurate readings and analyzes of the three prominent historical works in Iran are examined.
According to the hypothesis put forward in the book Pasargad, a number of grooves with holes in their path are referred to as waterways. And based on this hypothesis, it has been stated that the Pasargadae area was a royal garden. Based on the available evidence and considering the materials used in the floor of the canals and the distance between the cavities, which were the so-called comfort ponds, it can be concluded that these canals were in fact a stone foundation that the wall They were insulated with black stone from wood or white stone used on the walls
In Bostan arch, one can look for a missing link in it by examining various factors such as mountains, faults, headwaters, very wide and flat plains that are very prone to agriculture and green gardens, and then by examining the evidence and Evidence found that this area was a water reservoir. Therefore, the theory of the existence of a hunting ground can be criticized and it can be stated about the mentioned volume that there was no place for a hunting ground in the center of agriculture and dense gardens. On the other hand, there is no evidence that this area is a hunting ground. It seems that the only documents presented in this regard are the carvings done on the walls of the Bostan arch, which cannot be a proof of being a hunting ground in the same area.
Farhad Tarash inscription is located next to Kermanshah road and the shape of the stone is cut or blocked and attention to the integrity of the stone and its homogeneity and compaction according to the height of the mountain above it indicates the high quality of building stone and its value.

Conclusion
Documenting, finding knowledge, engineering and awareness in historical monuments. A historical monument cannot be considered as a rigid physics, but a historical monument is a function of time and has a current nature. Documenting a historical work should not be limited to data collection, but information should be created with the text and, more importantly, using the basic sciences, the knowledge contained in it and then its hidden engineering should be clarified. Through this process, which is briefly determined by macroscopy and in other words, the virtual (mathematical) definition of the design), the design and effect are dynamic.
It is analytical engineering that creates the possibility of totalitarianism and totalitarianism, and in this struggle, while identifying the elements, the relations of all human beings are also clarified. Therefore, in addition to eye vision (eye recognition), archeology must also have in-depth identification by another group. To determine the effect in terms of analytical engineering using analytical totalitarianism.
The correspondence between macroscopy and the reality of physics is of great importance. In other words, the macroscopic preparation and knowledge of each correlated set requires, quantitatively, analytical modeling. In modeling, each physical component is simulated with its mathematical equivalent.

Abstract
One of the most critical found objects from the site of Shahr-i Sokhta are lapis lazuli stones and beads, which were used as stone jewelry and ornaments. One of the site’s most significant archaeological and archaeometry topics is the way of manufacturing and types of stone structures into these objects. The Shahr-i Sokhta’s lapis lazuli beads manufactured with flint borers are in the forms of lens, lozenge, circle, etc., and were used as jewelry and ornaments such as bracelets, anklets, necklaces, etc. The main discussion in this research is recognizing the structure and studying the mineralogy of lapis lazuli beads discovered from Shahr-i Sokhta. Hence, by using laboratory-device methods such as petrography of thin sections, X-ray energy diffraction microanalysis, Raman Spectroscopy analysis, and gemology methods, this research studies the structures of three samples of lapis lazuli beads and stones of Shahr-i Sokhta. The results of laboratory studies show that Shahr-i Sokhta’s structure of lapis lazuli stone consists of lazurite minerals with a high percentage of calcite mineral impurities, which causes a reduction of transparency and purity of the lapis lazuli stones; also, elemental studies represent the presence of lazurite minerals. Raman structural and gemological studies show the structure, the amount of absorption coefficient, and its specific weight in the main structure of lapis lazuli stone. Chemical and structural studies indicate that the stones are similar in terms of composition.
Keywords: Stone Jewelries, Lapis Lazuli, Archeaometry,  Shahr-i Sokhta in Sistan, South-east of the Iranian Plateau.

Introduction
Shahr-i Sokhta is one of the most important and key sites among Bronz-age sites in southeast Iran’s archaeology (Biscione et al., 1974; Tosi, 1968, 1969, 1973; 1976; Tosi and Piperno, 1975; Savatori & Vidale, 1997; Piperno & Salvatori, 2007). Through excavations during different years up to now, a vast majority of semiprecious Stones and jewelry have been discovered; some of them are healthy beads in the form of necklaces, bracelets, and anklets, while others are half-worked beads as well as raw stone and blocks (Foglini, 1998). The jewelry is lapis lazuli, agate, chlorite, turquoise, limestone, flint, jasper, marble (calcite and aragonite), quartz, green tuff, and chert; that one of the most significant of them is lapis lazuli which was brought to Shahr-i Sokhta as a result of the trade from other regions. lapis lazuli stone in various forms and shapes is the most discovered abundant cultural material in Shahr-i Sokhta (Sajjadi, 2005, 2007). The discovered lapis lazuli are healthy and semi-worked, as well as raw and discarded material. The archaeological studies have demonstrated that the raw lapis lazuli blocks were imported into Shahr-i Sokhta, and then they were changed into various artifacts by artisans (Farzin et al., 2019). Hence, recognizing the structure and method of manufacturing the discovered lapis lazuli beads from Shahr-i Sokhta could be one of the most important topics for archaeologists. The archaeo-gemological study is a field of archaeometry that investigates and recognizes the structure and method of manufacturing and polishing these semiprecious Stone ornaments and jewelry. Archaeo-gemological studies examine minerals, gem materials, and jewelry, which were used as ornaments, decorative objects, jewelry materials, etc., in particular eras and places of the ancient world (Hatipoglu & Guney, 2013; Rapp, 2009; Dominguez-Bella, 2012). Therefore, this research based on Archaeo-gemological studies investigates the preliminary lapis lazuli stone jewelry produced in Shahr-i Sokhta.

Material and Methods (Samples)
The selected samples in this research include three pieces of lapis lazuli discovered from the archaeological survey of Shahr-i Sokhta. One of the samples is a raw material with a small incision that had been discarded as waste (SH-L1). The other one is a rectangular object with grooves in its width, which was broken during use (SH-L2), and the last one is a tiny bead; all three are studied in this research (SH-L3).

Methods
Microscopic thin section petrography (OPM) is administered to examine the samples under a polarizing microscope. The device model used in this research is James Swift, made in England.
The elemental Micro-analysis EDX method is applied to recognize samples chemical combinations. This examination is conducted through EDX devise coupled with a field emission electron microscope (FESEM) manufactured by Tasken company, model MIRA3TESCAN-XMU.
For structural investigation of the samples, this research uses Raman spectroscopy examination through (Takram) P50C0R10 model device, Taskan company in Raman laboratory. This device has a laser wavelength of 532nm (Nd: YAG Laser), and the range of Raman shift RS is 100-4600.
Moreover, this study uses gemological methods such as specific weight and refractive index to identify the samples.

Results
Petrography
According to the petrographic studies of the lapis lazuli samples under a polarizing microscope, blue lazurite minerals are seen with white calcite.
 
Raman Spectroscopy
The obtained spectra from this chart are compared with the reference spectrum at http://www.rruff.info This comparison indicates the existing lazurite in the stone structure of Na3Ca(Si3Al3)O12S. There is a Raman spectrum in the range of 546 cm-1, 1092 cm-1, and 254 cm-1, and the intensified spectrum is high in the range of 546 cm-1, considered the main spectrum.

EDX
Micro-analysis (EDX) Obtained spectra in the formula of these stones represent the amount of silicon (19/61 and 19/11), aluminum (7/14 and 7/21), magnesium (7/98 and 6/73), calcium (4/98 and 4/94), and sodium (3/46 and 3/13) elements with the highest abundance.

Gemological Analysis
This part investigates these lapis lazuli’s mineralogical features through two refractometer methods and the determination of specific weight. 

Refractometer
Among Shahr-i Sokhta’s studied samples, this research has selected three lapis lazuli samples to study. For investigating, first, one drop of special liquid (REFRACTOMETER LIQUID-Nd 1.81) is poured into the location of the samples; second, the flat sides of the gems locates on the oil. Then, by turning on the device lamp and closing the deflectometer cap, one could obtain each sample’s refractive coefficient measure by reading the refractive coefficient. The type of the studied sample has been identified by measuring the refractive coefficient of the samples and comparing obtained numbers with the standard table of gems (GIA- GEM PROPERTY CHART). The refractive coefficient of 1.50 is related to lapis lazuli stone.

Determination of Specific Weight
One of the quick identifying ways of the gems is the determination of their specific weight, which causes no damage to the gems. To obtain the particular weight of each mineral or gem, first, they are weighted in the air and then in the water. Next, by using a formula, the amount of specific weight is calculated. The particular weight of the discovered lapis lazuli samples of Shahr-i Sokhta is 2.1-3.3. 

Conclusion
Microscopic investigations based on the thin section petrography show that the structure of studied lapis lazuli is lazurite mineral type with calcite minerals. In microscopic images, Lazurite minerals clearly are blue, calcite minerals in the stone texture are white, and pyrite minerals rarely can be seen in the studied stone texture. Identifying the existence of a significant amount of calcite and a poor amount of pyrite in the lapis lazuli structure represents the amount of impurities in these stones. Furthermore, elemental analysis of the three lapis lazuli indicates that there are other elements with the highest frequency; these elements are silicon (20/95 and 20/67), aluminum (7/80 and 7/63), magnesium (7/28 and 8/52), calcium (4/94 and 5/33), sodium (3/34 and 3/74) and sulfur (0/66 and 1/09). In fact, lapis lazurite is a blue stone whose chemical composition is variable, and its basic composition is mineral lazurite consisting of aluminum, calcium, and sodium silicates. Lapis lazuli consists of several different minerals, such as sodalite, hauynolith, calcite, pyrite, and lazurite, which are lapis lazuli’s main components. Fewer white calcite spots and more yellow pyrite in the lapis lazuli indicate the best quality of the lapis lazuli. In table 3, silicon element (29.87%) and calcium element (12.26%) are the most amounts of compounds in the Shahr-i Sokhta lapis lazuli structures. The identified chemical compositions of the lapis lazuli in Shahr-i Sokhta are a high amount of calcium and a low amount of iron, which indicates the lapis lazuli structure of this site has a high calcium impurity and low pyrite impurity; this issue could be confirmed through petrography studies. Finally, this analysis represents the correct recognition of the composition and type of used stones in manufacturing ornament objects of Shahr-i Sokhta.
The element percentage of obtained spectra is clearly determined, indicating the main composition of lapis lazuli. The elements represent the chemical structure of a lapis lazuli, a lazulite mineral type with a high calcite impurity percentage. In addition, this study examines the three pieces of lapis lazuli samples through Raman spectroscopy; two samples represent almost similar peaks in the range of 546 cm-1 and 1092 cm-1, and only one sample shows a peak in the range of 546 cm-1. The investigations represent that based on the lapis lazuli studies using the Raman, the lapis lazuli in the mentioned ranges shows an almost significant peak. The number of elements and obtained spectra in these two spectra are almost similar.

Acknowledgments
This work has been supported by the “Investigation and study of Shahr-i Sokhta semi-precious stones” project funded by the Research Center for Conservation of Cultural Relics (RCCCR). The authors are thankful to Center for Conservation of Cultural Relics. The authors want to National Museum of Iran, Southeast Regional Museum of Zahedan, and Shahr-i Sokhta World Heritage Site for their supporting.

Abstract
In this study, the colors used in the Inscription and mural paintings of tomb of Ghadmagah in Neishabour were analyzed by instrumental analytical methods. Ghadmagah is located in the center of the Zabarkhan section, on the Neyshabur-Mashhad Road. Ghadmagah tomb-garden is located in the village of the same name 24 kilometers east of Neyshabur, Iran, and was built in the early seventeenth century. According to historical sources Ghadmagah was built in the early eleventh century AH (ca. 1600 AD), and the origin of this site dates back to Islam. Some believe that the Ghadmagah monument was designed by Sheikh Baha’i. The architectural decoration of this building is most importantly tiling, plastering and mural paintings. Given that the building was built in different periods and originally dates back to the Safavid period. The present study aimed to study the color bedding and pigments in the Inscription and mural paintings of the building to find out what period the mural paintings in the building belong to. Mural painting is one of the Iran arts that based on the signs of old paint can be pursued to pre-history. One of the most important issues in the study of historical paintings, especially mural paint, is the identification of the nature of paintings used to decorate the walls. Identification of pigments is also important not only from the perspective of archeology but also in terms of the history of art and knowledge of degradation processes and the development of monument conservation strategies is also important. In this study, instrumental methods such as scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), Fourier- transform infrared spectroscopy (FTIR), polarized light microscopy (PLM), X-ray diffraction (XRD) and micro-Raman spectroscopy have been used for elemental and compound microanalysis of the samples. 
Keywords: Pigment, Neyshabur Ghadmagah, Inscription, Mural Painting, Analytical Methods.

Introduction
The use of physical and chemical analysis methods to identify the constituents of works of art, before any intervention occurs, plays a key role; because the results of such an analysis are very useful for deciding whether to conserve or regenerate these materials. In addition, each of the different pigments can have a different regeneration process. On the other hand, the analysis of ancient paintings may provide information about the artistic techniques and visual materials used in the past and expand the knowledge of the customs and techniques of ancient societies. 
In fact, physical and chemical analysis provides useful information about the range of pigments present in an area and knowledge of dye preparation techniques and applications. In addition, the study of the originality and origin of pigments allows the discovery of connections and trade lines. On the other hand, restorers need detailed information about the chemical composition of the materials used in a work before restoration work. 
Identifying the materials and pigments used in this building is one of the most important questions of this research, and then by considering the history of using pigments, we can understand the dating of the paintings in this building. Do these paintings belong to the period of construction of the building, ie the Safavid period, or were they added to the building in later historical periods? Depending on the type of painting pigments, the colors can be restored. 

Materials and Methods 
In this research, empirical and analytical methods have been used to achieve the goals. Data collection is based on information from library studies and instrumental methods. The complete information of the devices used in this research is fully described in the Materials and Methods section. 
In this study, instrumental methods such as scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), Fourier- transform infrared spectroscopy (FTIR), polarized light microscopy (PLM), X-ray diffraction (XRD) and micro-Raman spectroscopy have been used for elemental and compound microanalysis of the samples. 

Data 
The result of the analysis showed that the blue color was used in inscription was artificial ultramarine (Na6-10Al6Si6O24S2-4) on a gypsum layer (CaSO4.2H2O) also gold color showed presence of copper and zinc alloy in the ratio of 10:1 in gold color. The blue color used in the mural paintings was also artificial ultramarine on a red layer of ochre. The result of micro-Raman showed that green pigment was copper phthalocyanine (phthalocyanine green). The results of identification of the orange-red revealed the presence of a mixture of red lead (minium) and red ochre (iron oxide) in the sample. Also, according to the obtained results, ochre and mixture of iron and manganese oxides were used in red and brown colors. 

Discussion 
The inscription at the top of the building used two colors, blue and gold, the result of the analysis showed that the blue color was artificial ultramarine (Na6-10Al6Si6O24S2-4) on a gypsum layer (CaSO4.2H2O). The absence of minerals such as pyrite and calcite in the PLM images indicates that the ultramarine is synthetic. The blue color used in the mural paintings was also artificial ultramarine on a red layer of ochre. The result of micro-Raman showed that green pigment was copper phthalocyanine (phthalocyanine green). A synthetic organic material composed of chlorinated copper phthalocyanine (chlorinated Phthalocyanine blue). Phthalocyanine green was introduced as an industrial pigment in 1938. This pigment is unaffected by light, heat, and chemicals the use of this pigment showed that the mural paintings was restored in Contemporary period. The results of identification of the orange-red revealed the presence of a mixture of red lead (minium) and red ochre (iron oxide) in the sample. Also, according to the obtained results, ochre and mixture of iron and manganese oxides were used in red and brown colors. FTIR results showed the presence of organic material only in green, indicating that it was the only reconstituted pigment, but no other organic material was detected in other colors, which may be due to the instability of organic materials during the time. 
Green phthalocyanine copper is a new pigment that may have been used to restore painting. This pigment was first used in 1320 AD, but it is not clear on what date this pigment was used to repair or reconstruct this paint. Due to the presence of oil in the FTIR spectrum of this color, it seems that unlike other colors, oil has been used to close this color, and the technique used in this color is different from other colors. 

Conclusion 
Identification of materials and pigments showed that the paintings are due to the presence of artificial ultramarine, were done in the Qajar period (1789-1925) and presence of phthalocyanine green in green color showed that this mural painting was restored in Contemporary period. 
The result of the analysis showed that the blue color was used in inscription was artificial ultramarine (Na6-10Al6Si6O24S2-4) on a gypsum layer (CaSO4.2H2O). The absence of minerals such as pyrite and calcite in the PLM images indicates that the ultramarine is synthetic. The results of identification of gold color showed presence of copper and zinc alloy in the ratio of 10:1 in gold color. The blue color used in the mural paintings was also artificial ultramarine on a red layer of ochre. The result of micro-Raman showed that green pigment was copper phthalocyanine (phthalocyanine green). A synthetic organic material composed of chlorinated copper phthalocyanine (chlorinated Phthalocyanine blue). Phthalocyanine green was introduced as an industrial pigment in 1938. This pigment is unaffected by light, heat, and chemicals the use of this pigment showed that the mural paintings was restored in Contemporary period. The results of identification of the orange-red revealed the presence of a mixture of red lead (minium) and red ochre (iron oxide) in the sample. Also, according to the obtained results, ochre and mixture of iron and manganese oxides were used in red and brown colors. Identification of materials and pigments showed that the paintings are due to the presence of artificial ultramarine, were done in the Qajar period (1789-1925) and presence of phthalocyanine green in green color showed that this mural painting was restored in Contemporary period. FTIR results showed the presence of organic material only in green, indicating that it was the only reconstituted pigment, but no other organic material was detected in other colors, which may be due to the instability of organic materials during the time.

Abstract
The slag sites under study are located in Khatam County, Yazd Province. In the archaeological surveys of Khatam County in 1400 AH, twelve metal smelting sites were identified through abundant metallic slag, and each of these sites was sampled. Petrographic analysis revealed that the predominant slag is iron, with only one instance of copper slag. The sites where metal smelting occurred, attributed to historical and Islamic periods based on pottery, exhibited evidence of iron smelting and its compounds in eleven samples. These samples contain metallic minerals such as wustite, marcasite, hematite, and magnetite. Marcasite and wustite minerals are related to smelting furnace processes and are products of mineral substances. It appears that in some mines in the region, magnetite and hematite are the predominant minerals, while in others, hematite is the predominant mineral, with a smaller amount of magnetite, which is evident in these primary minerals within the slag. Another sample related to copper slag exhibited small vesicular structures and limited copper ore minerals (chalcopyrite, digenite, and metallic copper) within the slag matrix. Alongside these primary minerals, there is a flow-like green glassy component indicating high furnace heat. The analytical results show that the MgO content in the samples is less than the amount of lime. Therefore, the limestone in this area is mainly ordinary limestone and not dolomite. Chemical analysis revealed that metal workers in this area were more successful at producing sponge iron.
Keywords: Archaeological Survey, Slag, Iron, Ancient Mining, Khatam.

Introduction
Iran has long been recognized as a center for mining and metal smelting. Archaeological evidence indicates that northern and central Iran are among the oldest centers of metallurgy in the world. The presence of rich mineral reserves in Iran, among other factors, has influenced the growth of mining and metalworking in this region (Momenzadeh, 2005). Due to the existence of various metal ores and advanced cultures in Iran, this area can be identified as one of the main hubs of technological innovation in the field of ancient mining and metalworking. Khatam County, located in the southern part of Yazd Province, holds particular significance in the realm of iron slag. One of the earliest efforts to produce steel worldwide took place in this region (Alipour et al., 2021). Considering the evidence of steel production in this area, it is essential (Alipour, 2017) to understand the role Khatam played in iron production during the Islamic and Sassanian periods. To investigate this matter, 12 sites in Khatam County were selected for studying iron slag. The main objective of this research includes petrographic and geochemical analysis of the slag to identify the type of extracted metal(s) and the extraction process and production of metal(s) at these sites. Additionally, the provision of necessary minerals for mining in this area is also under scrutiny. Historical and field research methods were employed for this study, involving the collection of data and archaeological investigations; field studies, such as topographic mapping, photography, identification of sites and metal smelting furnaces; and examination of samples using polarizing microscopes and XRF devices. This research has addressed primary inquiries related to the type of metals in slag, the mining process, and metal production at Khatam’s iron slag sites. Overall, Khatam County held significant importance in the production of metals during ancient and Islamic times. This region is recognized as one of the ancient mining and metalworking centers, and further research into the history and mining processes in this area could provide additional insights into the history of metalworking in Iran.

Discussion
Based on XRF chemical analyses of the slag, the results indicate that the majority of the mineral content in these slags consists of iron ore, with only one case showing the presence of copper. The CaO concentrations in these slags range from 3.59 to 28.41%, and an increase in CaO leads to the production of calcium-rich olivine. The type of slag (flow, permeable, massive, or furnace bottom) significantly impacts the results of chemical analysis and the ratio of oxides of the main elements (metallic oxides and silica). Additionally, the high amount of CaO facilitates the formation of a calcium-rich silicate phase. Petrographic microscopy studies confirm these findings, revealing observable olivine phases and primary silicate phases with metallic iron minerals such as magnetite and hematite. Due to the silica content, the addition of limestone to the smelting process increases the amount of duplex iron (Fe3O4). Consequently, silica stabilizes triplex iron oxide (hematite), while limestone stabilizes spinel iron oxide (magnetite). Moreover, microscopic examinations primarily reveal metallic minerals such as magnetite and metallic iron. Furthermore, sponge iron, like many other ancient civilizations in the region under study, was produced. The production of this type of iron requires less technical knowledge than other types of iron (Abbasnejad, 2009).
Surveying the region revealed that plants such as pistachios and wild almond produce high-quality charcoal. Since blacksmiths have no idea about using additional limestone in the furnace, the smelted slags were highly adhesive, leading to significant iron loss. The use of limestone in iron removal creates slags with fine properties that are easily separated from the iron (Abbasnejad, 2009). A good slag resulting from smelting should contain 30 to 40% limestone. Tests conducted on iron ore in this region show limestone percentages ranging from 3.59 to 28.41%. The slag analysis results also indicate a small amount of limestone, averaging approximately 11.38%. The deficiency of these two elements in slag, as they play crucial roles in reducing smelting heat and separating iron from slag, can indicate high iron levels and the inadequacy of slag (adhesiveness, viscosity, high density), resulting in low-quality sponge iron. The percentage of Fe2O3 ranges from 23.20 to 74.25%, and the percentage of Al2O3 ranges from 0.003 to 0.94%. The percentage of MgO in the tested slags is less than 0.003%. According to the mineral analysis, the most important iron minerals in this region include hematite (Fe2O3) and magnetite (Fe3O4). Due to technical flaws in these furnaces, sponge iron contains impurities such as silica, phosphorus, aluminum oxide, manganese oxide, and other metallic oxides, as confirmed by various tests conducted on ore and slag.

Conclusion
Eleven samples from the metal smelting site showed evidence of iron smelting and its compounds. In these samples, metallic ores such as wustite, marcasite, hematite, and magnetite are observed. Marcasite and wustite ores are related to smelting furnace processes and are mineral byproducts. It seems that in some mines in the region, magnetite and hematite are predominant, while in others, hematite is less prevalent, and magnetite dominates. Additionally, in the sample related to copper smelting slag, small and limited vesicles of copper ores (covellite, digenite, and metallic copper) are observed alongside a part of the green glassy matrix, indicating high furnace heat. This primary mineral evidence is observed in the slags. Considering the changes in the calcium oxide (CaO) concentration, it can be inferred that this substance was added during smelting operations to aid in smelting and reduce the temperature of the furnace materials. The microscopic results of some slags reveal primary minerals, mostly hematite and magnetite metallic ores, indicating a magmatic origin for the utilized minerals. The percentages of silica (SiO2), magnesium, and aluminum in these slags are relatively low. Analyses of these slags and iron stones from this region show that a deficiency of CaO and SiO2 leads to iron loss in the slag while increasing the iron content within it.
Based on this research, it is likely that iron ore was extracted from mines near the site and was subsequently transported to this location. Given the presence of iron mines at distances of 8, 10, and 15 kilometers from these sites, these mines are likely the source of these slags. Regarding the archaeology of the region, historical references indicate that the area held significance and prominence in various historical periods, particularly during historical and Islamic eras. However, due to insufficient information about the archaeology of the region and the lack of precise dating of these sites, accurate dating of these sites is unfeasible.