Premium
Composition and origin of holotype Al‐Cu‐Zn minerals in relation to quasicrystals in the Khatyrka meteorite
Author(s) -
Ivanova Marina A.,
Lorenz Cyril A.,
Borisovskiy Sergey E.,
Burmistrov Andrey A.,
Korost Dmitriy V.,
Korochantsev Alexander V.,
Logunova Maria N.,
Shornikov Sergei I.,
Petaev Michail I.
Publication year - 2017
Publication title -
meteoritics and planetary science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.09
H-Index - 100
eISSN - 1945-5100
pISSN - 1086-9379
DOI - 10.1111/maps.12839
Subject(s) - meteorite , holotype , mineral , geology , mineralogy , iron meteorite , parent body , chemistry , astrobiology , chondrite , physics , biology , genus , organic chemistry , botany
We investigated the khatyrkite–cupalite holotype sample, 1.2 × 0.5 mm across. It consists of khatyrkite (Cu,Zn)Al 2 , cupalite (Cu,Zn)Al, and interstitial material with approximate composition (Zn,Cu)Al 3 . All mineral phases of the holotype sample contain Zn and lack Fe that distinguishes them from khatyrkite and cupalite in the Khatyrka meteorite particles (Bindi et al. [Bindi L., 2009], [Bindi L., 2011], [Bindi L., 2012], [Bindi L., 2015]; MacPherson et al. [MacPherson G. J., 2013]; Hollister et al. [Hollister L. S., 2014]). Neither highly fractionated natural systems nor geo‐ or cosmochemical processes capable of forming the holotype sample are known so far. The bulk chemistry and thermal history of khatyrkite–cupalite assemblage in the holotype sample hint for its possible industrial origin. Likewise, the aluminides in the Khatyrka meteorite particles may also be derived from industrial materials and mixed with extraterrestrial matter during gold prospecting in the Listvenitovy Stream valley.