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Mineralogical ClassificationNatural HP CdSe from Zhamanshin Crater, Russia
22nd Jul 2016 01:39 UTCMarco E. Ciriotti Manager
▪ Kartashov, P.M., Gornostaeva, T.A., Mokhov, A.V., Bogatikov, O.A. (2016): The Natural High-Pressure Phase of Cubic CdSe in Impact Glass from Zhamanshin Crater. Transactions (Doklady) of the Russian Academy of Sciences/Earth Science Section, 467, 412-414.
Abstract:
A CdSe high-pressure polymorph of the NaCl structural type of a0 = 0.549 nm and Fm–3m space group was discovered in nature for the first time. Its composition is within range of CdSe–CdSe1 – õ where x = 0.2 apfu. The phase was discovered as abundant nanosize inclusions in irgizite-type condensate glass separated from the sample of impact rock of the Zhamanshin crater (Central Kazakhstan). The treated mineral was presumably formed within a gas–plasma cloud at the moment of impact.
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