proustite

[ proo-stahyt ]

noun

, Mineralogy.

1. a mineral, silver arsenic sulfide, Ag 3 AsS 3 , occurring in scarlet crystals and masses: a minor ore of silver; ruby silver.

proustite

/ ˈpruːstaɪt /

noun

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

Word History and Origins

Origin of proustite¹

1825–35; named after J. L. Proust; -ite ¹

Word History and Origins

Origin of proustite¹

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

Example Sentences

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.

From Project Gutenberg