domeykite
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Domeykite is a copper arsenide mineral, Cu3As. It crystallizes in the isometric system, although crystals are very rare. It typically forms as irregular masses or botryoidal forms. It is an opaque, white to gray (weathers brassy) metallic mineral with a Mohs hardness of 3 to 3.5 and a specific gravity of 7.2 to 8.1.
Key facts
- Mineral.name
- Domeykite
- Mineral.category
- Arsenide mineral
- Mineral.image
- Domeykite.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- Cu3As
- Mineral.IMAsymbol
- Do
- Mineral.molweight
- 265.56 g/mol
- Mineral.system
- Isometric
- Mineral.class
- Hextetrahedral (3m) H-M symbol: ( 3m)
- Mineral.symmetry
- I3d
- Mineral.unit cell
- a = 9.62 Å; Z = 16
- Mineral.strunz
- 2.AA.10b
- Mineral.color
- Tin-white to steel-gray
- Mineral.habit
- Reniform, botryoidal; massive
- Mineral.cleavage
- None
- Mineral.tenacity
- Brittle – sectile
- Mineral.mohs
- 3-3.5
- Mineral.luster
- Metallic
via Wikipedia infobox
Wikidata facts
- Image
- Domeykite.jpg
Show 6 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 2.AA.10b
- Commons category
- Domeykite
- chemical formula
- Cu₃As
- Nickel-Strunz 9th edition (updated 2009)
- 2.AA.10b
- IMA Mineral Symbol
- Do
- Strunz 8th edition (series ID, updated)
- II/A’.01
Sources (1)
via Wikidata · CC0
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Article
3 sectionsContents
- Uses
- See also
- References
Domeykite is a copper arsenide mineral, Cu3As. It crystallizes in the isometric system, although crystals are very rare. It typically forms as irregular masses or botryoidal forms. It is an opaque, white to gray (weathers brassy) metallic mineral with a Mohs hardness of 3 to 3.5 and a specific gravity of 7.2 to 8.1.
It was first described in 1845 in the Algodones mines, Coquimbo, Chile. It was named after Polish mineralogist Ignacy Domeyko (1802–1889) by Wilhelm Haidinger.