Keilite
Keilite is an iron-magnesium sulfide mineral (chemical formula (Fe,Mg)S)) that is found in enstatite chondrites.[1] Keilite is the iron-dominant analog of niningerite.[2] Keilite is named after Klaus Keil (born 1934).
Occurrences
Examples of keilite occurrences are enstatite chondrites and the Zakłodzie meteorite. It appears to be confined to impact-melt influenced enstatite chondrites that were quenched. There are also some meteorites interpreted as impact-melt breccias that don't contain keilite. This is explained as a deeper burial after impact, which slowed cooling and enabled retrograde reactions (diapthoresis) to take place.[3]
References
- ^ http://webmineral.com/data/Keilite.shtml Webmineral
- ^ http://pubs.nrc-cnrc.gc.ca/journals.old/mineral/mineral40/tcm-168740-6.pdf[permanent dead link]
- ^ Keil, Klaus (30 April 2007). "Occurrence and origin of keilite, (Fe>0.5,Mg<0.5)S, in enstatite chondrite impact-melt rocks and impact-melt breccias". Chemie der Erde - Geochemistry. 67 (1): 37–54. doi:10.1016/j.chemer.2006.05.002.
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