Stistaites of the South Urals
https://doi.org/10.24930/1681-9004-2021-21-6-894-911
Abstract
Research subject. Rare minerals of tin and antimony – stistaites from natural lead plates from the Severo-Svetlinskaya placer in the Chelyabinsk region and from microspherules of intermetallic compounds in the products of erosion of granites of the Kisegach complex in the Ilmeny Mountains.
Materials and methods. Electron probe analysis and laser ablation with inductively coupled plasma were used to study the composition of the predominant minerals of intermetallic compounds in lead plates extracted during the washing of a gold-bearing placer, as well as from metal microspherules in the sandy fraction of eroded granites.
Results. Two types of stistaite were identified: lead and arsenic-lead. Lead stistaites is sharply predominant, with its average composition (wt %) being Sb – 47.39, Sn – 38.75, Pb – 13.24, Cu – 0.06. The average composition of arsenic-lead stystaite (wt %) was found to be Sb – 43.89, Sn – 41.06, Pb – 11.02, As – 3.05, Cu – 0.47. Tin-lead microspherules from the destruction products of biotite granites of the Kisegach massif (Ilmeny Mountains) occasionally contain crystals and spotted precipitates of lead stistaite with the composition (wt %) of Sn 53.54, Sb 38.45, and Pb 7.42.
Conclusions. It is assumed that, in both cases, the formation of alloys of intermetallic compounds of tin, lead and antimony with inclusions of native copper and iron was associated with granite magmatism.
Keywords
tin,
lead,
antimony intermetallic alloys,
stistaite,
antimony sorosite,
native tin,
lead,
copper,
iron,
South Urals
Supporting agencies: The authors are grateful to A.V. Ryazantsev (GIN RAS, Moscow) and Dr. A.J. Locock (University of Alberta, Canada) for information assistance, E.V. Korinevsky for preparing illustrations, and an anonymous reviewer for valuable advice.
About the Authors
V. G. Korinevsky
Institute of Mineralogy, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS
Russian Federation
Russian Federation
Miass 456317
V. A. Kotlyarov
Institute of Mineralogy, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS
Russian Federation
Russian Federation
Miass 456317
S. V. Kolisnichenko
Institute of Mineralogy, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS
Russian Federation
Russian Federation
Miass 456317
D. A. Artemiev
Institute of Mineralogy, South Urals Federal Research Center of Mineralogy and Geoecology UB RAS
Russian Federation
Russian Federation
Miass 456317
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Review
For citations:
Korinevsky V.G., Kotlyarov V.A., Kolisnichenko S.V., Artemiev D.A. Stistaites of the South Urals. LITHOSPHERE (Russia). 2021;21(6):894-911. (In Russ.) https://doi.org/10.24930/1681-9004-2021-21-6-894-911
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