proustite

American

[proo-stahyt] / ˈpru staɪt /

noun

Mineralogy.

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

proustite British

/ ˈpruːstaɪt /

noun

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

Etymology

Origin of proustite

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Changed the reference for Proustite on page 626, and the references for Pyrargyrite, for Ruby Silver, for Silver, for Silver Glance and for Silver Ores on page 627, from "109" to "108."

From Project Gutenberg

Other minerals which yield a minor percentage of the total silver produced are the silver-antimony sulphides, pyrargyrite or "ruby silver," stephanite or "black silver," and polybasite; the silver-arsenic sulphides, proustite or "light ruby silver" and pearcite; and the silver antimonide, dyscrasite.

From Project Gutenberg

It is found native, and also combined with sulphur, arsenic, antimony, chlorine, etc., in the minerals argentite, proustite, pyrargyrite, ceragyrite, etc.

From Project Gutenberg

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