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waltherite

noun
wal·​ther·​ite | \ ˈvältəˌrīt\
plural -s

Definition of waltherite

: a mineral consisting of an ill-defined carbonate of bismuth having green to brownish green doubly terminated prismatic crystals

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History and Etymology for waltherite

German waltherit, perhaps from Walther, a 19th century Austrian mining official + German -it -ite

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