a mineral, silver arsenic sulfide, Ag3AsS3, occurring in scarlet crystals and masses: a minor ore of silver; ruby silver.
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How to use proustite in a sentence
I might possibly offer to change some of the locally interesting ones for a proustite, but I can't afford any more cash just now.Chats in the Book-Room | Horace N. Pym
British Dictionary definitions for proustite
a red mineral consisting of silver arsenic sulphide in hexagonal crystalline form. Formula: Ag 3 AsS 3
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012