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| Bronze Age Copper Slags from South Urals and Kazakhstan: Ore Sources and Alloying Additions Dmitry A...Cis-Urals, Trans-Urals, and North and Central Kazakhstan are presented. The study used Cu-(Fe)-sulfides...slags are primarily represented by covellite and chalcocite, as well as by rarer bornite and single chalcopyrite...Supergenic ores in the Bronze Age in Urals and Kazakhstan played a significant role in the mineralogical...from Bronze Age slags and mines in the Urals and Kazakhstan will permit the further identification of ore |
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| JULY–AUGUST 2022 Articles Dzhezkazgan, Karaganda Region, Kazakhstan .......................................451...3.5 cm, from Mine 21, Dzhezkazgan mine group, Kazakhstan. Joan Massague collection; Jeff Scovil photo...CRYSTAL CLASSICS Dzhezkazgan Karaganda Region, Kazakhstan Wendell E. Wilson The Mineralogical Record...Tpmoore1@cox.net The Dzhezkazgan District in central Kazakhstan has been known since the 1980s for fine specimens...metallic minerals, a suite now known to include chalcocite, native copper and wire silver, as well as some |
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| seen in aragonite (light and dark orange). (A þ D) Region A exhibiting polycrystalline calcite within the...calcite overgrowth crystal in the inset. (B þ E) Region B with a crack running through the crystal with...observed in the outer parts of the fracture. (C þ F) Region C shows calcite crystals (light blue color) extending...orientation of the reaction front in that particular region. The crystallographic directionality of the apatite...and altered parts as well as from the interface region showed that the crystallographic orientation of |
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| ......................................... 1. Chalcocite G ro u p ......................................aluminium in the Northern Urals, the copper ores of Kazakhstan, the oil fields in the W est of the Urals and...etc. Gels of organic origin are abundant in the region of the biosphere. Their formation is often associated...somewhat higher passing into the submetallic-lustre region on the graph (Fig. 20). Should we distribute all...case in German). Examples: galena (lead glance), chalcocite (copper glance), antimonite (antimony glance) |
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| copper derives. The history of research in each region is examined, as is the survival of early mine archaeology...Chalcopyrite CuFeS2 Bornite Cu5FeS4 Idaite Cu3FeS4 Chalcocite Cu2S Covellite CuS Tetrahedrite Cu12Sb4S13 Tennantite...Enrichment zone Reducing chrysocolla CuSiO3H2O chalcocite Cu2S covellite CuS bornite Cu5FeS4 Water table...secondary sulphides (e.g. covellite, CuS, and chalcocite, Cu2S), often with a significant increase in metal...generally difficult to obtain detailed mapping for any region of the type of small surface ore deposits that |
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| discovered in the Bota-Burum U deposit, Southern Kazakhstan, was detected by characteristic bands in the...cm1 is called the fingerprint region. Usually IR spectrum in this region contains very complicated series...overlapping bands. The importance of the fingerprint region is that each mineral species produces a different...500 to 800 cm1 can be considered as “fingerprint region” sensitive to the composition and the topological...see Fig. 1.9), but generally IR spectrum in this region is characteristic of all these minerals. In IR |
Jezkazgan, Ulytau Region, Kazakhstan