List of Articles Mineralogy

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  1 - Study of Physical, Geochemical and Mineralogical Properties of Dust in Lorestan Province (Case Study: Kuhdasht Constituency)
  Hamid Alipor Kazem Taleshi
  10.30495/jest.2022.62952.5490
  Background and Objective: The phenomenon of dust is one of the biggest serious environmental problems in arid and semi-arid regions. More than two thirds of Iran is located in this climate. This phenomenon can damage infrastructure and agricultural products and cause a More

  Background and Objective: The phenomenon of dust is one of the biggest serious environmental problems in arid and semi-arid regions. More than two thirds of Iran is located in this climate. This phenomenon can damage infrastructure and agricultural products and cause a lot of economic damage. Therefore, since the study area is in the western part of Iran and is highly exposed to dust. On the other hand, so far no comprehensive study has been conducted in this field in the region, so this research is a necessity. Scientific and practical objectives of the research include: Investigating the diversity of soils in the region and their relationship with landforms in the region, Investigating the temporal distribution of dust characteristics in the region, Investigating the soil characteristics of the study area and Hur al-Azim wetland in Khuzestan This is a phenomenon. Material and Methodology: For this study, Kuhdasht basin with an area of 456 square kilometers located in western Iran and southwestern Lorestan province was considered. 12 glass traps with dimensions of one square meter were installed in the area to trap dust at a height of about 2.5 meters above the ground. And seasonal dust samples were prepared during 2015. Sampling was performed for origin from the surface soil of the region and Hur al-Azim wetland. To determine the concentration of heavy metals, the chemical digestion step was performed by the ETHOS 1 microwave device made in Italy. Then, to determine the concentration of elements, atomic absorption apparatus (Perkin Elmer Analyst, 3030) with detection limit of ppm and ppb and flame technique was used and for cadmium metal concentration through graphite furnace technique. Meanwhile, the region's flower was drawn by WRPLOT software, 7.0.0. Finding: The highest rate of dust subsidence is in spring and the lowest in autumn. The average annual subsidence rate of the region is 11.51 tons per square kilometer per year. The textile class of silt sludge dust particles and the particle transfer index from areas with medium to high distances. The average concentration of heavy metals in dust is higher than the soil of the region. In general, the results showed that cadmium and zinc elements have very high pollution factor, nickel and lead have significant pollution and manganese and copper elements have low pollution. The elements cadmium, zinc and nickel, which have an enrichment factor of more than 10, are of human origin, but the element lead is of natural and human origin together, and the elements manganese and copper are of natural origin in the region. The similarity of minerals and the presence of evaporative minerals in fine dust reinforces the hypothesis that it is part of the origin of wetland and offshore particles. However, the study of chemical properties indicates the role of local resources in the generation of dust. Discussion and Conclusion: The main flow of dust in all seasons in the study area is from cross-border areas. The amount of dust is highest in spring and lowest in other seasons, which is lowest in autumn. The particle size distribution class is silty loam, which indicated the presence of resources at medium to relatively close distances to the area. The rate of subsidence in the region indicates the type of regional dust. The concentration of heavy metals in dust is high in winter and the element zinc has the highest amount. The level of pollution index of all elements indicates the spread of pollution in the region. Clay mineralogy showed that the presence of evaporative minerals strengthens the hypothesis of wetland origin and transboundary. In general, this study showed that the deserts of the mentioned neighboring countries and dust sources of Khuzestan province (located in the south of the region) are the main sources of dust in the region. Manuscript profile
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  2 - Mineral composition and paragenesis of altered and mineralized zones in the Gadir low sulfidation epithermal deposit (Lesser Caucasus, Azerbaijan)
  Novruz Novruzov Anar Valiyev Aydin Bayramov Sabuhi Mammadov Javid Ibrahimov Aygul Ebdulrehimli
  10.30495/ijes.2019.664777
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  3 - Identification of sand dune sources in the east Sistan, Iran by using mineralogical and morphoscopic characterization of sediments
  Gholam Heidar Zoraghi Kazem Shabani Goraji محمد رضا نورا علی رضا راشکی آدام بمبای
  10.30495/ijes.2019.667378
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  4 - Mineralogical and geochemical investigations of chromite ores from ophiolite complexes of SE Iran in terms of chrome spinel composition
  Jamal Tarrah Zahra Abedpour Karl Strauss Thomas Schirmer Kurt Mengel
  Ten chromite ores from ophiolite complexes in SE Iran were analyzed mineralogically by XRD, chemically by XRF, and mineral chemistry by EPMA. The identified paragenesis of silicate minerals of chromite ores with the X-ray diffraction is pronounced differently. It consis More

  Ten chromite ores from ophiolite complexes in SE Iran were analyzed mineralogically by XRD, chemically by XRF, and mineral chemistry by EPMA. The identified paragenesis of silicate minerals of chromite ores with the X-ray diffraction is pronounced differently. It consists of secondary phases formed as serpentine, Cr-containing chlorite (kaemmererite), chromic garnet (uarovite) with preserved partly primary minerals of peridotite parent rocks such as olivine and diopside. From the total chemical analysis by XRF results, a good correlation exists between the Cr2O3 and SiO2 content (as an index of the sum of the silicate minerals). This allows an easy decision for mine ability of chrome ores. In a relatively good correlation are also the Mg and Fe oxide contents. The mineral chemisty (EPMA analysis ) of spimel mineral  provides valuable information about the  the  octahedral layer of the spinel,. The results of the microprobe analysis show a variation in the chemical composition of the spinel phase of a mixed crystal formation consisting of: chromite (Fe2+Cr2O4), magnesiochromite (MgCr2O4), spinel (MgAl2O4), and hercynite (Fe2+Al2O4). This becomes even more complex by the mixed crystal relationship with picotite [(Mg, Fe2+)(Cr,Al,Fe3+)2O4], which contains Fe3+ in the tetrahedral position. The chrome spinel vary inCr-numbers [100 ×(Cr / Cr + Al) = 75-92] and Mg-numbers [100 * (Mg / Mg + Fe2+) = 38-57]. The partition of iron between Fe3+ und Fe2+ was made by assuming normal spinel structure, using the formula AB2O4. Correlations of microprobe analysis indicate that the mineral chemistry of the studied spinel is characterized mainly by the divalent elements  of Mg and Fe2+ in the A position and trivalent elements Cr and Al in the B position. Manuscript profile
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  5 - Role of Mineralogy and Geochemistry in the Beneficiation of Jajarm Bauxite from North East Iran: Comparison with some other Bauxite Deposits of the World
  Habib Mollai
  Two types of bauxite occur in the Jajarm Bauxite deposit, the first one is the hard bauxite and the other is the shaly bauxite or soft bauxite. The Al 2 O 3 content ranges from 30% to 60% and SiO 2 varies between 5% to 39%.The total tonnage is more than 22 million tons More

  Two types of bauxite occur in the Jajarm Bauxite deposit, the first one is the hard bauxite and the other is the shaly bauxite or soft bauxite. The Al 2 O 3 content ranges from 30% to 60% and SiO 2 varies between 5% to 39%.The total tonnage is more than 22 million tons with a mean value of Al 2 O 3 content between 47% to 48% , SiO 2 around 10% and Fe 2 O 3 ranges between 6.95 to 27% . The Jajarm bauxite deposit shows high concentration of active SiO 2 and Fe 2 O 3 in comparison with other bauxite deposits of the world. Efforts have been made in this research to delineate the characteristics of the Jajarm monohydrate bauxites, consisting of a diaspore and chamosite mixture, to improve their chemistry by different beneficiation techniques and optimize their processing, grinding and digestion conditions for alumina production The Jajarm bauxite shows politomorphic and micro- granular texture with several secondary textural elements. The size of diaspore grains (which is the main mineral component) are generally below 10 microns, with a homogeneous matrix. In addition, for the very hard bauxite we can not do any separation between the crystal grains and the matrix because of similar hardness for both with closely packed space filling and in consequence of the absence of well- defined grain boundaries. Based on the above studies, the Jajarm bauxite can be enriched neither by grain analysis nor by magnetic separation. In this research hard bauxite was crushed between 2 to 3 inches and then samples were washed with 5% HCl. The result of this laboratory studies shows that the silica modulus has improved from 1.05 to 2.56 which indicates an increase of 29% in the Al 2 O 3 content. Jajarm laboratory s study shows that Jajarm bauxite deposit partially can be improved only by water treatment. Manuscript profile
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  6 - Mineralogy and geochemistry of host rocks of in the Jalal Mn ore Deposit ( South of Qom)
  Mansore Mahdavi محمد Yazdi M.H Emami
  Jalal Manganese ore is located in the southwest of the Qom. The area is located in Uromieh-Dokhtargeological zone of Iran. The base and host rock of the area include Eocene volcanic rocks such as basalt,andesite, trachyte, rhyolite, andesite-basaltic lava and spillitic More

  Jalal Manganese ore is located in the southwest of the Qom. The area is located in Uromieh-Dokhtargeological zone of Iran. The base and host rock of the area include Eocene volcanic rocks such as basalt,andesite, trachyte, rhyolite, andesite-basaltic lava and spillitic lava. The lavas are more pillow types. Theyounger andesite-basaltic dykes have been intruded to these volcano-sedimentary rocks of the area.TheMn- mineralization was hosted in the volcano-sedimentary rocks of the area. Hangingwall and footwall ofore are andesite-basaltic lava and spillitic lava. The ore mineralization was hosted as vein type withinfaults, joints and fractures. The main direction of ore mineralization is NW-SE in the several parallellayers. These layers have been known as A, B, D ore layers in the Jalal area. The surface outcrop of orelayers is about 2km and have been cut by several local faults, mainly in NW of the area. The new drillingsshow that the dip and direction of the ore layers have been changed in the dipper parts mainly to the NE.The ore minerals are mainly pyrolusite, Psilomelane, with Mn oxides and non-ore minerals are mainlycalcite and quartz. Field survey, geochemical and mineralogical studies show that the mineralization isvein epithermal type. Manuscript profile
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  7 - The relationship between mineralogy of fluorine ore with its floatability (Case study: Kamarposht fluorine mine)
  Mohammad Bagher Eslami Andargoli Mojtaba Ebrahimi Mojtaba Mortazavi
  Fluorine sample used in the study was supplied from Kamarposht (Savadkooh) Fluorine miner. First studies onKamarPosht fluorine particles is for concentrating and high grading and receive to metallurgical grade extent.asample received from accumulation of blasting orebro More

  Fluorine sample used in the study was supplied from Kamarposht (Savadkooh) Fluorine miner. First studies onKamarPosht fluorine particles is for concentrating and high grading and receive to metallurgical grade extent.asample received from accumulation of blasting orebroken in mine with 100Kg weight that the 80 percent ofmaterials are under 500 micron. On Fluorine samples also microscopic studies, freedom degree and flotationtests have been done. Results of petrograghy is shown associate minerals with fluorine include quartz, calcite,barite and dolmite which can cause some problems in fluorine processing. Because of this anionic collector ofoleic acid is used on fluorine flotation tests. Also for reaching to concentration with proper grade, was been usedfrom sodium silicate inorganic depressant as depression of silicate minerals and sodium carbonate for regulationof pulp PH and metal salt of aluminum sulfate for depression of calcite.Finally %35 grade fluorin of feedreached to % 61/4 grade and % 85/88 recover by using flotation tests, that is metallurgical grade extent and mainscope of the studies. Manuscript profile
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  8 - Applications of SEM-EDAX method in study of Baba-Ali & Galali iron ore, west of Hamedan
  Godratollah Rostami Paydar Mohammad Lotfi Majid Ghaderi Mansor Vossoughi-Abedini Azadeh Amiri
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  9 - Investigation of the swelling aspect from Marageh city’s clayey soil based on mineralogy effects and physicochemical properties
  Dariush Ahadi Ravoshti Maryam Golnezhad
  10.30495/geotech.2020.679339
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  10 - Sedimentology and mineralogical characteristics of the coastal sediments in the southern part of the Caspian Sea (Iran)
  H. Bagheri
  Caspian Sea isa unique laboratory, for studying all aspects of oceanography and coastal geology. The main aim of this study was to investigate: textural andmineralogicalcharacteristics ofcoastlinedeposits in the south Caspian Sea. Initially, 100 sediment sampleswere tak More

  Caspian Sea isa unique laboratory, for studying all aspects of oceanography and coastal geology. The main aim of this study was to investigate: textural andmineralogicalcharacteristics ofcoastlinedeposits in the south Caspian Sea. Initially, 100 sediment sampleswere taken in summer2014, along 700 km of the southern Caspian Sea coasts (from HosseinGholi Bay to Astara, one sample per 5-8 km).In addition, after sampling, coastal geomorphology and structures were evaluated and manypictures were taken. Optical mineralogy and grain size analysis were performed on sediments. Heavy mineralsincluding ilmenite, magnetite and goethite, pyroxene, apatite, zircon and garnet and also light minerals included quartz, plagioclase, orthoclase, carbonate fragments and bivalveswere identified. Mapping the distribution of minerals showed that eastern coastline sediments are rich in light minerals and carbonate fragments derived mainly from the erosion of Kopeh-Dagh Mountains. The central and western coast is dominated by heavy minerals, primarily ilmenite and magnetite that are supplied by the Sefidrud River. The moderate abundance of light minerals in the central region results from the sediment flux of the rivers that drain the Cenozoic and Quaternary volcanic coverage and Mesozoic sedimentary deposits.A closer look and compliance with regional geological maps, mineral distribution and beach slope,it was found that in the regions of the study area that the sea slope in the shallow parts are steep and slope of the beach is gentle (east Mazandaran and central parts of gilan province) distribution of heavy minerals such as magnetite and goethite is higher than other areas, while the distribution of Gabbro-Dioritic, and carbonate fragments are more in steep beachareas andareas of sea bed with gentle slope (West of Gilan and Mazandaran). Also gravely coasts are formed in the steep sea bed and beach areas, as the small particles and light mineralsare washed away in these areas. Manuscript profile
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  11 - The Mineralogical Effect on the Mesophilic Bioleaching of Copper from Smelter Dust and Flotation Concentrate
  Ali Behzad Zahra Manafi Mohammad Ranjbar
  Background and objectives: Nowadays, bacteria are widely used to recover copper from waste, ore, and concentrate. It is very important to understand bacterial performance in relation to materials with different mineralogy in order to select appropriate bacteria and impr More

  Background and objectives: Nowadays, bacteria are widely used to recover copper from waste, ore, and concentrate. It is very important to understand bacterial performance in relation to materials with different mineralogy in order to select appropriate bacteria and improve bioleaching processes with high performance. As a consequence, the aim of this study is to investigate the effect of smelter dust and flotation concentrate mineralogy on copper recovery from the materials using mesophilic bacteria. Materials and Methods: The effect of processing material mineralogy on biological extraction of copper was investigated using a couple of material with different mineralogy, metallurgical dust and concentrate of Sarcheshmeh copper complex. Bioleaching experiments were performed by using mixed culture of A. ferrooxidans, A. thiooxidans and L. ferrooxidans from Sarcheshmeh Copper Mine in shaker utensils. Results: Metallurgical dust mostly contained secondary sulphides products such as chalcocite and covellite, and concentrate mostly contained primary sulphides product such as chalcopyrite. The extraction rate of copper was achieved 0.835 g/L/day and 0.403 g/L/day from dust and concentrate, respectively. Also, kinetic studies showed that the rate constants of dust and concentrate were 0.125 day-1 and 0.010 day-1, respectively. Conclusion: The impact of mineralogical characteristics of the material on bioleaching operations was significant. Due to highly solubility rates of secondary sulphides, recovery rate and a higher overall copper recovery was obtained from dust in comparison to concentrate. Chalcopyrite oxidation was stopped at relatively low amounts (about 44%) and additional bioleaching time have not been improve it. The experiments showed that standard mesophilic culture at 35 ° C was very successful in bioleaching of secondary sulfide minerals, but bioleaching of primary copper sulfide minerals especially chalcopyrite by  the culture was not effective. Manuscript profile