ruby silver

American  

noun

Mineralogy.

1. proustite.

2. pyrargyrite.

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ruby silver British  

noun

1. another name for proustite pyrargyrite

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Etymology

Origin of ruby silver

First recorded in 1875–80

Example Sentences

Processes of secondary enrichment have in places yielded large quantities of oxidized silver minerals and wood tin near the surface, with accumulations of ruby silver ores at greater depths.

From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)

Ru′by-blende, a clear red variety of zinc sulphide: ruby silver; Ru′by-tail, a gold-wasp, or cuckoo-fly.—adj.

From Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) by Various

These red fluores, to employ the words just used by you, are the ruby silver which you showed us before.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

The native grey sulphuret of silver, and the ruby silver ore, both presented the same phenomena.

From Experimental Researches in Electricity, Volume 1 by Faraday, Michael