bromargyrite

Also known as bromyrite

Bromyrite or bromargyrite is a natural mineral form of silver bromide found mainly in Mexico and Chile. Hardness is 1.5 to 2. Related are chlorargyrite and iodyrite.

Key facts

Mineral.name: Bromargyrite
Mineral.image: Bromargyrit mit gediegen Silber - San Onofre, Mexiko.jpg
Mineral.imagesize: 260px
Mineral.caption: Bromargyrite with silver – San Onofre, Mexico.
Mineral.category: Halide minerals
Mineral.formula: AgBr
Mineral.strunz: 3.AA.15
Mineral.system: Isometric
Mineral.class: Hexoctahedral (mm) H-M symbol (4/m 2/m)
Mineral.symmetry: Fm3m
Mineral.unit cell: a = 5.7745 Å; Z = 4
Mineral.color: Yellowish, greenish brown, bright green
Mineral.cleavage: None observed
Mineral.fracture: Irregular/uneven, sub-conchoidal
Mineral.tenacity: Sectile
Mineral.luster: Adamantine, resinous, waxy
Mineral.streak: White to yellowish white
Mineral.diaphaneity: Transparent, translucent

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Wikidata facts

Image: Bromargyrite-rh3-12b.jpg

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IMA Mineral Symbol: Bag
Commons category: Bromargyrite
chemical formula: AgBr
Nickel-Strunz 9th edition (updated 2009): 3.AA.15
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 3.AA.15
Strunz 8th edition (series ID, updated): III/A.02

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Bromyrite or bromargyrite is a natural mineral form of silver bromide found mainly in Mexico and Chile. Hardness is 1.5 to 2. Related are chlorargyrite and iodyrite.

It was first described in 1859 for an occurrence in Plateros, Zacatecas, Mexico where it occurred in a silver deposit as an oxidation product of primary ore minerals. It occurs in arid environments along with native silver, iodargyrite and smithsonite along with iron and manganese oxide minerals.