TY - JOUR

T1 - Moissanites of the Popigai Astrobleme

AU - Gromilov, S. A.

AU - Afanasiev, V. P.

AU - Pokhilenko, N. P.

N1 - Publisher Copyright: © 2018, Pleiades Publishing, Ltd.

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Moissanites were found in tagamites of the Popigai meteorite crater along with impact diamonds. We have studied 55 samples including 49 individual polytypes and six intergrowths. The numbers of 6H, 15R, 4H, 6H/15R, and 6H/4H polytypes are 82, 7, 5, 4, and 2%, respectively. By the assemblage of polytypes, the moissanites of the Popigai astrobleme are distinct from kimberlite moissanites, as well as from synthetic SiC, which is characterized by the absence of the 4H polytype and the presence of more diverse inclusions (including Fe-bearing). The Popigai astrobleme is one of few objects with reliable natural moissanite. Technogenic contamination is excluded, since any researcher can find this mineral in tagamites.

AB - Moissanites were found in tagamites of the Popigai meteorite crater along with impact diamonds. We have studied 55 samples including 49 individual polytypes and six intergrowths. The numbers of 6H, 15R, 4H, 6H/15R, and 6H/4H polytypes are 82, 7, 5, 4, and 2%, respectively. By the assemblage of polytypes, the moissanites of the Popigai astrobleme are distinct from kimberlite moissanites, as well as from synthetic SiC, which is characterized by the absence of the 4H polytype and the presence of more diverse inclusions (including Fe-bearing). The Popigai astrobleme is one of few objects with reliable natural moissanite. Technogenic contamination is excluded, since any researcher can find this mineral in tagamites.

UR - http://www.scopus.com/inward/record.url?scp=85052843578&partnerID=8YFLogxK

U2 - 10.1134/S1028334X18080275

DO - 10.1134/S1028334X18080275

M3 - Article

AN - SCOPUS:85052843578

VL - 481

SP - 997

EP - 999

JO - Doklady Earth Sciences

JF - Doklady Earth Sciences

SN - 1028-334X

IS - 2

ER -