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proustite

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noun proust·ite \ˈprü-ˌstīt\

Definition of proustite

  1. :  a mineral that consists of a red sulfide of silver and arsenic and occurs in crystals or massively



Origin of proustite

French, from Joseph L. Proust †1826 French chemist


First Known Use: 1835


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a timid, meek, or unassertive person

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