Buseckite

minerals

sinoite

troilite

tridymite

Formula: (Fe,Zn,Mn)S
Sulphide, wurtzite group, forms a series with wurtzite, paramorph of keilite, rudashevskyite and troilite
Colour: Black
Environments

Meteorites

Localities

To date (March 2021) buseckite has been found only at the type locality, the Zaklodzie meteorite, Zamość County, Lublin Voivodeship, Poland. Buseckite is the Fe-dominant analogue of wurtzite, discovered in an ungrouped enstatite-rich achondrite. The type material occurs as single-crystal grains, 4–20 μm in size, in contact with two or more of enstatite, plagioclase, troilite, tridymite, quartz and sinoite. Low-Ni iron, iron variety martensite, schreibersite, keilite, cristobalite and graphite, which are also present in the type sample, are not observed to be in contact with buseckite (AM 97.1226-1233).
The meteorite is likely to have derived from the breakdown of high-temperature pyrrhotite to form troilite and buseckite after the solidification of sulphide-rich liquids produced by impact melting of an enstatite-rich rock (HOM).

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