Cohenite

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

Cohenite is a naturally occurring iron carbide mineral with the chemical structure (Fe, Ni, Co)3C. This forms a hard, shiny, silver mineral which was named by E. Weinschenk in 1889 after the German mineralogist Emil Cohen, who first described and analysed material from the Magura meteorite found near Slanica, Žilina Region, Slovakia.

Excerpt from the Wikipedia article “Cohenite”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Sharygin, V.V.; Ripp, G.S.; Yakovlev, G.A.; Seryotkin, Y.V.; Karmanov, N.S.; Izbrodin, I.A.; Grokhovsky, V.I.; Khromova, E.A., CC BY 4.0, via Wikimedia Commons.