Abstract
The mineralogical and chemical investigation of ancient slag is of high importance for economic mineralogist and archaeometalurgist. These investigations reveal information, which is of general historical and mineralogical interest. Over than 95% of metallic reservoirs have proved antiquity evidences. By using mineralogical-petrographical studies on metallurgical slag as an object from the ancient world, it could be enhance to understanding about the major and trace elements via metal extraction.
The basin of Halil Rood (Halil River) is privileged to have a rich civilization. Many objects as well as metallurgical evidences belonging to the third millennium BC have been discovered in this district during the archeological excavations. Kerman – Rabor – Jiroft district is of great interest due to the archaeometallurgical signs in south-west Iranian desert and belong to the Halil Rood region. This district is important according to the enrichment of polymetallic hydrothermal ore reservoir such as Cu, Pb, Zn, Sn, Ag and Au in south and south-west of Zagros orogeny. Several scientists have been focused on this region, as one of the born place of metallurgy in the ancient World [1]. The primary aim of this study was the characterization of extracted metals and the methods of smelting. The objects to be discussed here are mostly copper slag as well as ores. 20 local mining- and metallurgical places have been found through recently archaeometallurgical expedition. These places are mainly consisted of slag-heap, fireplaces and ore deposition, which are remarked possibly as passage-metallurgy along south Iranian desert.
Keywords: Archaeometallurgy, Metallogeny, Petrology, Slag, Copper, Kerman.

Introduction
There are several slag accumulations in Halil region. The slag samples investigated during the present work were collected from thirty-seven different ones which were located in different parts of studied area. There are four Types of slags in these districts districts.
A) The slags are generally massive and in some cases the colour is black with some red spots (Copper). The sign of flow structures can be seen on some of them, but there is no glacial one. The porosity is high as well as their density. The structure such as furnace has been excavated from this area. This Furnace has ca. 1.5 m cross section dimension.
There was a deponie of slags materials upside this furnace. In the furnace there exist no slags by now. It could be the furnace with temporary employment in this region. Such furnaces with the same structures have been observed in the north of central desert in Iran, In sahroud and Khorasan region.
B) there are five small dumps located near each other which have been considered. These samples have flow structures. They are black and red in color and have more porosity than an accumulation’s samples.
C) several small dumps located at the main stream at the north of Rabor-Jiroft district, which considered as C accumulation. Only one slag was selected from it. This sample is black in colour and has massive structure. No flow or glacial structures can be seen between slag pieces in C accumulation.
D) A very small dump has been excavated. The physical properties of these slags are completely different from other ones. This sample has many porosity and low density. It is black in colour and no flow or glacial structures are seen. Mineralogical and petrological analyses were performed only on slag materials. The dating of all this samples to classify these dumps could not be possible in this project. The distribution of the dumps is not only statistically but also commonly on this field, and for this reason there is another factor to have no chance to get the better results in respect on the ageing of dumps on this region exactly. The topographic situation and the changing of the earth in each seasons, and the movement of the seasonal rivers disturb the structure of the surface topography permanently each year. This distribution during the overflows in the wet seasons could be the aspect of slag’s distribution either.

Halil region is located in south central of Iranian metallogenic zone. Rock types in this area are mainly divided into 6 sections as follow:
1. Upper Proterozoiec: the oldest and the most abundant rock type in studied area. This formation is composed of quartzitic shist, phyllic- like schist, green schist and marble. Quartz-chloric, quartz- seresic, chloritic schist are also existed with an admixture of carbonate with thick layers and lenses of dolomitize marble, dolomite and rare beds of chloritized calcareous-quartz.
2. Cretaceous: This rock type forms bands of sublatitudal. Lower Cretaceous deposits are spread in external parts. This rock type largely composed of carbonate rock, less abundant conglomerate, gravels and sand stone.
3. Eocene: This basal unit of tuff- conglomerate lies completely at the lower part of the complex. These are overlain by tuff and lavas of trachyandesitic and andesitic composition, with intercalation of trachyandesite- basalt and lime stone. The section is crowned by fine- fragment of tuff and tuff- mudstone.
4. Dykes: the oldest and the most abundant Dykes are porphyry granite, aplitic granite, microgranosyenite, syenite and lamprophyre. The younger ones are porphyry granodiorite and porphyry diorite.
5. Plutonic rocks: these rocks are very abundant and most of them are acidic. Linear ultra mafic structures are observed in this area. Plutonic units are divided into different parts: Diorite-Manzanite, Manzanite-Quartz Manzanite, Porphyry Alkaline, Graniteporphyry, Quartz Syenite.
6. Quaternary: these sediments are widespread in all over the studied area. Genetically, they are subdivided into alluvial- proluviall- and eolian sediments.
The probable ore types which is outcropped in this area are classified as the following table; The objects to be discussed here are the copper slag. The primary aim of this study was the characterization of materials and the methods of smelting. The objects which have been found here are mostly slag as well as ores. The slag shows the structure of casting slag and also remains from the smelting furnace. The materials are characterized by means of XRD-XRF and Pol-Microscopy methods.

Conclusion
The slag contains high amount of Copper oxide, hydroxide and carbonate and silicate and some amount of MgO or MnO complexes. The main silicate appeared here is Fayalite and pyroxene which has been existed in the matrix of slag. The main paragenesis is chalcocite-chalcopyrite-covellite. copper was smelted at the high oxygen fugacity; approximately about 10-7 atm. Indeed, the furnaces heated with charcoal and charcoal observed also in the macroscopic texture of slag.

References
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Abstract
The rock art heritages all across Iran have a exceptional importance compared to the rock arts of the world. For example, the Bistoon rock art complex is listed on the World Heritage Sites and some others, like Naghsh-e-Rustam, are located in the cultural landscape of World Heritage. The entities of such rock heritages to an evolving environment, have been threatened, especially with the increase in air pollutants. Threats of Environmental Pollutants might have endangered the Integration of these Cultural Landscapes. The presence of these pollutants is due to the presence of large and small pollutant industries, especially petrochemical complexes. For the first step, it is necessary to evaluate different methods of monitoring air pollutants on rock cultural heritage. Various methods of environmental measurements have been used to assess the condition of the rock heritage. These monitoring techniques can be divided into direct and indirect methods. The main research question is about the advantages and disadvantages of each of these two methods for choosing the suitable rock heritage monitoring system. In this article, next to gathering information from objective observations and theoretical studies, the data were obtained through qualitative analysis. In this article, after examining the characteristics of these two methods, the type of direct monitoring required has been identified to identify air pollutants and control the rock heritage. Meanwhile, new conservation experiences in historic sites can reduce concerns about energy infrastructure constraints and reduce the cost of continuous monitoring of rock heritage. Therefore, the results will be applied in addition to having fundamental and theoretical values.
Keywords: Rocky Heritage, Air Pollution, Environmental Monitoring, Naqsh-e Rostam.

Introduction
Monitoring is the periodic measurement of the environment that compared to the data obtained and the predetermined characteristics (Thomson, 1965). In cultural heritage sites, it is necessary to examine the process of environmental change over the short, medium and long terms, in relation to the historical impact and development centers. It also analyzes whether the two issues of conservation and economic development have been compromised (Íñigo et al., 2006). Continuous monitoring can be considered as a criterion for decision-making in the conservation of cultural heritage and provide shared benefits to heritage sites with the goal of improving site management and preventive conservation (Smith, 1991).
Research Objectives and Necessity: The main objective of this paper is to evaluate air pollutant monitoring methods in rock heritage. The gradual expansion of cities and industries has made it unavoidable to change historic and ancient spaces even in the most remoted areas. This has become a challenging debate about the World Heritage Sites and the cultural landscape around the, and more and more important is how to control the side effects of this condition, so environmental measurements are certainly the first step.
Research Questions and Hypothesis: In the present study, while reviewing the advantages and disadvantages of direct and indirect monitoring methods in rock heritage, has been analyzed a more appropriate system for monitoring of such heritages. It seems that in order to select an effective monitoring method, should be evaluated their impact on measuring the quality of changes in the site and to determine its scale and method according to the objective.
Methodology: In this paper, while classifying environmental pollutants, it is emphasized the necessity of choosing an appropriate monitoring approach. Also have been investigated different methods and experiences of measuring and monitoring air pollutants and have been analyzed the advantages and disadvantages of direct and indirect monitoring techniques for selecting the most suitable rocky heritage monitoring system.

Context
Generally, environmental pollutants are divided into several major categories Which include: 
1) Small and Large Industries 2) Large Scale Agriculture and 3) Road Vehicles, that each of these sources produce all kinds of environmental pollutants and can damage the rock structures (Likens Gene E., 2013: 259). Large groups of pollutants are SOx, NOx and COx that have been identified and measured for many years by sensor monitoring (Frassoldati et al., 2005). Monitoring sensor are continuously developing and they are advanced enough to be able to detect the type and concentration of different types of Nitrogen oxides, Sulfur and Carbon oxides both in situ (without the need for a laboratory) and at time (not after time) (Yu et al., 2015: 250 ؛Zhang Y. et al., 2018: 224). In this respect, techniques SPME (Solid Phase Microextraction), DLLME (Dispersive Liquid-Liquid Microextraction) and etc., have been very effective in extracting environmental pollutants (Tang et al., 2011; Farré et al, 2010). There are two main options for monitoring: direct monitoring (active or passive methods) or indirect monitoring (structurally or using extraction methods). Direct monitoring measures and records the amount of air pollutants at specific time periods. In contrast, passive monitoring measures the effect of air pollutants on monuments indirectly at specified times, which are usually longer.

Conclusion
Choosing an effective strategy for rock heritage management with the objective of preventive conservation against air pollutants, it needs to understand the structure of the object, the environment around it and the relationship between the two. In addition to scientific studies, this  is partly dependent on the value and significance of the object from a social and cultural point of view. The advantages and disadvantages of using direct and indirect monitoring methods for selecting the appropriate rock heritage monitoring system and its measurable variables are presented and summarized in Table 1. Therefore, it would be far more useful to have a direct monitoring system for rocky heritage and it is a strategy for treatment and preventive conservation. It should be noted that any strategy definition does not necessarily mean conservation of the objects and it is necessary to continue the environmental monitoring after adopting preventive conservation, in order to determine the effectiveness of the methods and, if necessary, to revise and correct the methods.

Abstract
Due to the extent of the empire’s territory, the remains of the Achaemenid stone pillars have been registered in different parts of Iran. The remains of this architectural style can be seen in the monumental set of Pasargadae, Persepolis., Naqsh-e Rostam, Lidoma and Tomb-e Bot in Fars Province, the remains of Shush in Khuzestan Province, and stone works of Ecbatana in Hamedan, Rivi Palace in Northern Khorasan Province, and Achaemenid palaces in Borazjan region in Bushehr province. The rock mining of these monuments was recognized as local. However, in Boushehr Province, two ancient mines of Pouzepalangi Rahdar and Tang-e Gir of Borazjan Region have been named. The maximum extraction and application of the crème color stones from the Puze- Palangi mine were registered from the palaces of the Borazjan Region. However, for the geological structure of the black-gray stone of Acamenian palace in Charkhab of Borazjan, samples of this type of stone were extracted from Charkhab palace. These samples were compared with the gray-black samples of the Bardak-e Siah and Sang-e Siah Palaces of Borazjan. With the petrographic studies of thin sections obtained from the palaces and chemical analysis of XRD and XRF, the structural process of the gray-black samples of the Achaemenid palaces of the Borazjan region entered a new stage. The results of the petrography studies indicate that the gray-black stone samples of Charkhab palace corresponded to the sample of Sang-e Siah Palace and Badak-e Siah, considering the microsprite and sprite background, and the few amount micrite as well as the layered structure. Also, the analysis of the analytical samples of XRD and CRF of these stones indicates that the samples of Charkhab Palance and Sang-e Siah are the same. Given that no trace was found in the mining for the gray-black stones in Boushehr Province so far, it can be then claimed that these stones were extracted from a non-local mine. 
Keywords: Borazjan, Charkhab Palace, Bardak-e Siah Palace, Sang-e Siah Palace, Petrography, XRD, XRF.

Introduction
The coasts of the Persian Gulf, especially the ports of Bushehr and Borazjan in the golden age of Elam, i.e., the late 2nd millennium BC, has been one of the important centers of trade and the interface between the sea route of Shush and India. The fertile and tropical areas of Dashtestan were among the areas where the Achaemenid dominated shores and benefited from the proximity to the sea. They provided places for themselves in these areas so that they could spend the winter there. The building of Charkhab Palace in Borazjan is known as the winter palace of Achaemenid Cyrus due to its great similarity with the private palace of Cyrus in Pasargadae.
Research Questions and Hypotheses: The main questions of research are as follows: What is the structure of black-gray stones used in the Achaemenid architecture of Borazjan palaces? What is the structural relationship between black-gray stone in the Achaemenid palaces of Borazjan (Charkhab, Bardak-e Siah and Sang-e Siah)? Based on current studies, what opinion can be expressed about the mines of Borazjan Achaemenid palaces?
Research Method: Petrography and analytical methods of XRF and XRF were used to the geological structure of the gray-black stones of the stone pillars of Charkhab Palace in Borazjan. In the meantime, using the research method thin-walled structure to observe the minerals and adopting the samples were done with the OLYMPUS BX51 polarizing light transmission microscope, made in Japan, with the capability of filtering light in the XPL mode of the analyzer and emitting polarized light. XRD experiments to identify and detect the crystalline phases forming in the study samples and qualitative and semi-quantitative determination of crystals by powder method (with Cu) target radiation lamp with a maximum potential difference of 40 KV and maximum current intensity of 30 mA, fixed sample and Needle detector) was performed on three samples of historical palace stones in Bim Gostar Taban laboratory in Tehran. The results were analyzed by High Score Plus software. XRF experiments were performed to identify and quantify the constituent elements of study samples of Achaemenid palaces by powder method and with the model device: PW1410 Manufactured by PHILIPS Netherlands in Bim Gostar Taban laboratory in Tehran on the same three samples.

Research Background 
Borazjan city is located 67 km from Bushehr and 226 km from Shiraz. Due to the discovery of a piece of a stone pillar base when digging a water canal in Borazjan in 9171, the General Directorate of Archaeological Research of Iran assigned Dr. Ali Akbar Sarfaraz to explore the site in which this work was discovered.  Dr.Ali Akbar Sarafraz was the head of the Iranian Archaeological Board in Bishapour at that time. Therefore, archeological operations began in this ancient area, and at the end of the one season of the excavation, the main form and structure of the columned hall were manifested. In a study entitled “Spatial analysis of the Achaemenid palaces in Borazjan” the appearance, location, and objects obtained from these sites have been discussed.

Petrography Results 
The gray-black stone of all three Achaemenid palaces of Charkhab (CH1, CH2, and CH3), Bardak-e Siah (BS1), and Sang-e Siag of Borazjan (SS1) are calcareous and boiled in contact with 0.1 normal hydrochloric acids. These carbonate rocks have a microsparite texture to sparite, and are micrite to a small amount, and have few quartz grains.

XRD Analysis of Gray-Black Stone Samples of Achaemenid Palaces in Borazjan Region 
The spectrum of gray-black stones of the Achaemenid palaces of the Borazjan region, which includes the samples of Charkhab Borazjan (CH3), Bardak-e-Siah (BS1), and Sang-e-Siah (SS1), the matching of the spectra of the same limestone is observed. However, based on the peak intensity of calcite in the samples of Charkhab Palace (CH3) and Sang-e Siah (SS1), which shows 11000, are placed in one group. Also, the sample (BS1) with a peak intensity of calcite over 14000 is observed separated from the group.

XRF Analysis 
In the analysis of the black-grey stones of the Achaemenid palaces, the sample of grey-black stones of palaces has been compared as only the samples of palaces are available. Also, the possible mine of the black-grey stones has not been reported in Boushher Province so far. Accordingly, the oxide of the main elements, such as SiO2, CaO, P2O5, TiO2, and MgO, represents particular values in the table. These values are approximately close to each other in the sample of the grey-black stones of the Achaemenid palaces. Therefore, they are considered an appropriate indicator of similarity. Graphs of oxide values of SiO2, P2O5, TiO2, CaO, and MgO of the samples are consistent. Also, the accordance of the oxide values of the mentioned elements, the values of the secondary elements (in terms of ppm) of the gray-black stones of Charkhab (CH3), Bardak-e Siah (BS1), and Sang-e Siah (SS1) rocks are observed.

Analysis and Discussion  
Using the laboratory and scientific methods and comparing the results of this paper with the results of the papers on Pasargadae and Persepolis, the relationship between the sources of extraction of gray-black stones of the complex of Achaemenid monuments in Borazjan Region of the Fars province mines, Majdabad mountain mine in particular, around the Perspolis and Sarpaniran and Ahmadbegi Mines in Pasargadae is rejected. The presence of several large pieces carved from this type of stone in the east of the Achaemenid palace of Charkhab Borazjan confirms that Charkhab palace was in the process of construction. However, these stones which have been left on the ground two hundred meters east of the palace, are reasons for the existence of a stone-cutting workshop of Charkhab palace or another building that has not been excavated yet.

Conclusion 
Studies on the gray-black rocks of Achaemenid palaces show that mining traces or mine exposure of this kind of stone have not been seen or reported in the region. Therefore, it seems that these mines were not local, and the stones were supplied from other sources. Also, the hypothesis based on that the grey-black stone mines might have been local depends on the more extensive field studies in the future.

Abstract
Since during this era, Yazd involve less social vicissitudes and because of the training performance in the middle ages of Islam, the tradition of school building that started from the Seljuk dynasty in a quiet environment. Being away from security concerns and creating relative peace during the middle ages and the high acceptability of building a school has provided the emergence of its construction in the city of Yazd. Therefore, considering the numerous references to the schools of this era in Yazd historical texts and the absence of research on the architecture of the historical schools of this city, the article describes the building features of these ones. Answering this question is the purpose of this article: what are the features of school mentioned in the historical texts and what were components of spatialization and arrays of these schools? The research method of this article is based on historical documents and library studies. This is a historical-analytical research and its main reference is historical sources such as books of Ta’rikh-e Yazd (History of Yazd), Ta’rihk-e Jadid Yazd (New History of Yazd) and Ja’me’ Mofidi. Historical schools are explored in this article from the aspects of architecture, decoration, function and constructers. The results of this research show that schools in Yazd have local and indigenous features that were prevalent in this area, before Ilkhanate dynasty, and the influence of local architectural and decoration methods on the school building is undeniable according to historical sources. Schools have a lot in common with the architecture of mosques, houses and Khaneqahs (monasteries) considering that schools are usually used as a graveyard, these buildings can be classified as burial schools, and finally, various classes of people have played a major role in building these historical schools as founders.
Keywords: School Architecture, Muzaffarids, Timurid Era, Yazd.

Introduction
In the 77-year rule of Muzaffarids dynasty (718-785 A.H.), in addition to the proceedings taken in the field of city development and increasing the area of battlement, basic measures were done in the field of the construction of religious schools and Khaneqahs (monasteries), so that it can be said that this region reached the glory of cultural prosperity within itself (Shamseh, 2006, P.31). Muzaffarids rule, whose beginning coincided with the end of the Ilkhanate era, should be considered one of the most powerful, best and most prosperous governments in the middle history of Iran, because at that time nowhere in Iran had cultural, social and economic development as much as their territory, and the importance of cultural affairs and attention to science and schools was so much that most possession of the desert region, means water aqueducts and gardens were dedicated to school, and this was apart from the devoted Bazaars and Caravanserais. (Mohammadzadeh & Razavi, 2011, P.21). It has been mentioned in various sources that nearly one hundred schools, two hundred Gonbadkhaneh (domes) and Khaneqahs (monasteries) as well as twelve mosques were built in the 8th century A.H. in Yazd city (Masahebi Naini, 1997, P.302), from the abundance of schools that were built in Yazd, Kerman, Shiraz and other cities during this period, it is possible to understand the level of people’s attention and dedication to the study of religious sciences. (Setoodeh, 1967,P.274). Muzaffarids kings, as well as the great personalities of this era, paid special attention to religious buildings such as mosques, schools and Dar-al Siadeh {a porch that is a gathering place for Seyeds and followers of Imam Ali (peace be upon him)}. In fact, the movement that started during the era of Khajeh Rashid- al Din with the construction of building such as “Gonbad Soltaniyeh” and “Rabَ –e Rashidi” ,other schools and religious places and the tradition of endowment became common in them; then in this era, it grew and expanded significantly, so that whenever there is talk of building a mosque, an order was given to build a school next to it, and endowments were also awarded to (Rais- al Sadat, et al., 2011,P.96). The cultural and artistic actions of Muzaffarids rulers caused the growth and development of Islamic culture and civilization, which provided the basis for its connection with later periods, so that the Timurid and Safavid eras, which are considered the glory the growth and development of Islam can be attributed to Muzaffarids proceedings. (Sarabadani, 2010,P.102). 
Questions of Research: 1- What architecture and arrays do the Yazd schools have, referring to historical texts? 2- What developments and functions do schools have?
Method of Research: The current research has explained the architecture of the historical schools of Yazd from the Ilkhanid to the Timiurid era with an analytical historical approach. In this research, the necessary historical information has been collected, especially from local historical texts such as Ta’rikh-e Yazd (History of Yazd), Ta’rikh Jadid Yazd (New History of Yazd) and Ja’me’ Mofidi, because these texts refer to different schools that were used in that era, but today there are no traces of some of those schools. Discussions such as examining architectural spaces, decorations, performance, development and school constructer are the subjects of this research.

Conclusion
Construction of Muzaffarids and Timurid Schools in Yazd continues the school-building tradition that began in the Kakuyids dynasty. The speed of school-building in Yazd during the Muzaffarid era is very intense, but it moderates during the Timurid dynasty. The concern of school-building in this era includes different strata of society from the aristocratic and royal class to religious scholars and all of them involved in this noble tradition. These schools were mostly built for the burial place of their founder after their death, and in order to legitimize it, the tomb was dome-shaped. For this reason, the Gonbadkhaneh (dome) is an integral part of Yazd schools, and in some ones, they are satisfied with the construction of this morsel. Parts such as elongated Soffeh (terrace), the pair of minarets on the façade, Tanabi (a large room in the middle of the building, without a window or door, surrounded by other spaces), and dome usually with an array, the central courtyard, the Baghtche-e Moshajar (a garden planted with different trees) at the end of the building are considered parts of the school spaces of this era. Utilizing the native structure and decoration methods in “Gonbadkhaneh and Tanabi”, and local architectural mechanisms all give these schools a regional display. The schools of this era with local and indigenous basis have adopted some of their architectural and array features from the era of “Kakuyids and Atabakan”. According to the remaining schools and with the help of historical texts, a general model for schools can be presented (Scheme 1). Schools like mosques and houses of this era, have a similar pattern, although there are common spaces between these functions. The existence of the elongated and lofty porch, which is usually located on the south facade, a small and compact yard,”Gonbadkhaneh or Tanabi” next to or behind the south porch, three-part divisions similar to mosques in the view facing the yard, the presence of a rear garden behind the porch or Gonbadkhaneh like the houses or Khaneqahs, creating a linear structure in spatial organization and many other cases, all confirm this paradigmatic similarity. The tradition and pattern of building these schools were forgotten after the abundance of school building in the Timurid era. The studies and researches of this article can be extended to the Safavid to Qajar era as well, so that a detailed understanding of the architecture and school building method in Yazd throughout history can be obtained through it.

Abstract
This study aims to recognize and characterize pottery production at the Hormangan site, a Neolithic settlement in the northeast of Fars province, Iran. An examination and analytical study of the potteries on this site was conducted to determine the manufacturing techniques of the Neolithic potteries, understand the raw materials and inclusions, the level of progress and knowledge of the potters from the final products, and the location of the production site. Excavating this site, ceramics and a heated structure, probably an open kiln, were found, belonging to the Mushki phase (6400-6000 BC). Thirty-six ceramic shreds were selected for thin-section petrography analysis according to their macroscopic features. After that, 18 of them were analysed using X-Ray Fluorescence (XRF) and X-Ray Diffraction methods. According to the mineralogical studies and the XRD and XRF analyses, while three different clay types were used to produce these Neolithic ceramics, they were all local productions. These vessels were fired in an open and unsophisticated kiln at an uncontrolled temperature, probably not over 800 degrees. Although the combination of these archaeometrical techniques indicates that there are various sub-angular inclusions in each type of clay, most of the pots are vegetally tempered (chaff-tempered). The existence of the heated structure separately from residential construction, a variety of designs and decorations on the ceramics, and various clay sources all determine that the Neolithic community of the Hormangan site has gone beyond a primitive rural society and as semiprofessional individuals had a surplus of more than their demands.
Keywords: Neolithic Period, Hormangan Site, Ceramic Production, Petrography, XRD, XRF.

Introduction
Hormangan site is a Neolithic site located on the border of the Bavanat River basin, in Jeshnian village, in the northeast of Fars province, Iran. This site was excavated in 2016, revealing two phases dated back to 6373 to 6000 BCE. The earlier phase indicates no traces of architectural structures, and the later phase contributed to the settlements. Moreover, a heated structure was discovered simultaneously with the later phase, surrounded by potteries and divided spaces. Pottery vessels which were discovered from these two phases are similar to the ceramics of Tall-e Mushki, Tall-e Jari B, Kushk-e-Hazar, Tall-e Bashi, and Rahmat Abad. As these types of potteries were first discovered from the Tall-e Mushki, they are known as Mushki phase potteries. The heated structure discovered in the Hormangan site is a unique structure related to producing pottery during the Mushki phase, which was probably an open fire kiln. Since there are no similar structures have been found in the Neolithic sites in the Fars region, this study aims to understand pottery manufacturing technology with multi-analytical approaches. Moreover, considering the two phases of the Hormangan site occupied by different settlers for almost 300 years, it is attempted to differentiate potteries of these two phases from a technological point of view.

Geological Setting
A portion of the Bavanat plain lies in the Sanandaj-Sirejan zone, as well as the Shahreza-Abade- Hambast orogenic belt, characterised by high-quality clay deposits and Devonian sandstones (Houshmandzadeh and Soheili, 1990). Several types of rocks can be found in the Bavanat region (Emami and Yaghmai, 2008), spanning three tectonic-stratigraphic units: Late Permian and Middle Triassic rocks, Late Triassic and Cretaceous rocks, and Tertiary rocks (Ghazi and Moazzen, 2015; Ghorbani, 2011). From the mineralogical point of view, this area includes kaolinite, illite, quartz, and chlorite, and secondary minerals are goethite, paragonite, and gypsum. Also, sandstones and shales have been eroded in most cases, creating debris slides. There is a large hydrographic network density in Tutat Mountain (formed by internal and metamorphic formation). However, there is a lower density of hydrographic network in the Kitaban, Khaleisht, and Khatban Mountains. The clays in this region are therefore expected to contain high levels of lime and quartz minerals, but it is also likely to contain metamorphic minerals (Khademi and Hashemi Nasab, 2011).

Materials and Methods
Hormangan ceramics were primarily divided into six groups based on surface treatment, colour, and decoration style. In further classification, the Hormangan potteries were categorised based on their form, size, place of motifs and ceramic fashioning techniques. After initial macroscopic studies of these ceramic vessels, 36 pottery sherds were selected for thin-section petrographic analysis. For choosing these samples, not only the former classifications were considered, but also it was attempted to select potteries from different phases and various contexts and trenches. The earlier phase includes 14 samples, the later phase 12 samples, and the heated structure 10 samples were selected for this analysis. 
For getting inside into the primary and secondary mineralisation phases, determining firing conditions and maximum temperature, and environmental burial conditions, 18 samples (from those 36 samples) have been selected for the X-Ray Diffraction analysis (XRD) in order to determine the crystalline phase constituents. This methods is necessary as a complementary method to petrography. Moreover, X-Ray Fluorescence analysis as a semi-quantitative analysis has been applied to these 18 samples to detect the chemical characterisation of their main and trace elements and to identify whether the earlier and later phases’ samples become clustered into two different groups or not. 

Discussion
The thin-section microscopic analysis indicated a very porous matrix with angular and semi-angular inclusions, which are mainly quartz, and with traces of vegetal tempers. Moreover, the vessels were fired under the oxidation condition. The inclusions were distributed randomly in the matrix, which suggested that they were not homogeneous and consisted of quartz, limestone, calcite, plagioclase (albite and sanidine), and igneous rock fragments, including muscovite, iron oxide, granite, magnetite, hematite, apatite, and feldspars. In most sherds, secondary calcite was formed, resulting in burial in a humid condition. The XRD analysis enabled us to observe some high-temperature minerals, such as gehlenite and diopside, in some samples. These minerals are usually presented in ceramics when fired at more than 800 degrees. On the other hand, the presence of the main elements MgO+CaO, Al2O3, and SiO2, detected by the XRF analysis and diagramed by the Noll system, indicated a very similar final product in terms of raw materials and inclusions. In addition, Cl, MnO, and SrO have been identified in these samples as trace elements, indicating the environmental conditions of the vessels after abandonment. 

Conclusion
In light of the microscopical observations and the phase and chemical analyses, it was determined that the Hormangan potteries could be divided into three main groups. The potteries of the earlier and later phases could not be distinguished from one another. These three groups are comparable to the region’s geological map, meaning all potteries are locally made. Except for four samples that were fired above 800 degrees, the others were fired at temperatures around 750 degrees. Samples from the earlier and later phases were distributed randomly among these clusters, comprising the Calcareous, Iron-rich, and Calcium-rich matrixes. The clay minerals were all extracted in the vicinity of the site, despite the fact that there were three different types of clay materials. Therefore, the potter(s) at the Hormangan site have chosen diverse clay sources but employed different techniques each time to produce similar results. It has also been noted that samples obtained from the heated structure have very similar characteristics to the ceramics produced in the later phase. According to the absolute dating results, the heated structure and the later phase are contemporaneous. However, in terms of potters’ technological behaviours, this could point to some standardization of ceramic production during this time.
Another question we have attempted to answer is whether the potter(s) added any aplastic materials, such as quartz, to their clay in order to increase its workability. Based upon an ethnoarchaeological study of the current pottery production in ShahReza (Pincé et al., 2019), approximately 230 kilometers away from the Hormangan site, it has been found that additional tempering does not need to be applied to the clay for the production of ceramics, owing to the rich clay sources in the ShahReza-Abade-Hambast orogenic belt (located in the Sanandaj-Sirjan zone). There is a possibility that the richness of clay sources in this region allowed potters to avoid tempering their raw materials during different periods, which will be investigated in more detail in future studies.   

Acknowledgements
Dr Morteza Khanipour has generously allowed access to the Hormangan site’s ceramics for this study, and the authors are very grateful for his generosity.