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Formula: FeS
Sulphide, galena group, paramorph of
buseckite, rudashevskyite and
troilite, forms a series with niningerite
Crystal System: Isometric
Specific gravity: 3.958 calculated
Colour: Grey
Environments
Keilite is an an accessory mineral in enstatite
chondrite meteorites, associated with niningerite,
enstatite, iron variety kamacite and
troilite
(HOM).
Localities
At the type locality, the Abee meteorite, Abee, Alberta, Canada, keilite was found as grains up to several hundred micrometers
across in the enstatite chondrite meteorite,
associated with troilite, iron variety kamacite and
enstatite
(Mindat).
At the Zaklodzie meteorite, Zamość county, Lublin Voivodeship, Poland, Keilite, occurs as xenomorphic grains up to 0.5 mm in diameter,
associated with troilite (or pyrrhotite),
Fe-Ni metal, an (Fe,Zn,Mn)S phase, enstatite with relict
forsterite in cores, plagioclase and
accessory schreibersite, oldhamite,
graphite, sinoite and an SiO2
paramorph
(AM 92.204-209).
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