pyroaurite

noun

py·​ro·​aurite

ˌpīrōˈȯˌrīt

plural -s

: a mineral Mg₆Fe₂(OH)₁₆CO₃.4H₂O that is a hydrous basic carbonate of magnesium and iron

Word History

Etymology

Swedish pyroaurit, from pyr- + Latin aurum gold + Swedish -it -ite; from its resemblance to gold after being heated

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