proustite

[ proo-stahyt ]
/ ˈpru staɪt /

noun Mineralogy.

a mineral, silver arsenic sulfide, Ag3AsS3, occurring in scarlet crystals and masses: a minor ore of silver; ruby silver.

Origin of proustite

1825–35; named after J. L. Proust; see -ite1

Example sentences from the Web for proustite

  • 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

proustite
/ (ˈpruːstaɪt) /

noun

a red mineral consisting of silver arsenic sulphide in hexagonal crystalline form. Formula: Ag 3 AsS 3

Word Origin for proustite

C19: from French, named after Joseph Louis Proust (1754–1826), French chemist