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پروستیت
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پروستیت

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Proustite is a sulfosalt mineral consisting of silver sulfarsenide, Ag3AsS3, known also as ruby blende, light red silver, arsenic-silver blende or ruby silver ore, and an important source of the metal. It is closely allied to the corresponding sulfantimonide, pyrargyrite, from which it was distinguished by the chemical analyses of Joseph L. Proust (1754–1826) in 1804, after whom the mineral received its name.

Key facts

Mineral.name
Proustite
Mineral.category
Sulfosalt minerals
Mineral.image
Proustite-209739.jpg
Mineral.imagesize
260px
Mineral.formula
Ag3AsS3
Mineral.IMAsymbol
Prs
Mineral.strunz
2.GA.05 Neso-sulfarsenites
Mineral.dana
03.04.01.01 Proustite group
Mineral.system
Trigonal
Mineral.class
Hexagonal scalenohedral (m) H-M Symbol: ( 2/m)
Mineral.symmetry
Rc
Mineral.unit cell
a = 10.79 Å, c = 8.69 Å; Z = 6
Mineral.color
Scarlet-vermilion
Mineral.habit
Crystals prismatic and scalenohedral, massive, compact
Mineral.twinning
Common
Mineral.cleavage
Distinct on {101}
Mineral.fracture
Conchoidal to uneven
Mineral.tenacity
Brittle

via Wikipedia infobox

Wikidata facts

Named after
Joseph Proust
Image
Calcite-Proustite-mf16b.jpg
Show 8 more facts
streak color
vermilion
Commons category
Proustite
chemical formula
Ag₃AsS₃
Nickel-Strunz 9th edition (updated 2009)
2.GA.05
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
2.GA.05
IMA Mineral Symbol
Prs
Strunz 8th edition (series ID, updated)
II/D.01a
Sources (1)

via Wikidata · CC0

Gallery (4)