jalpaite
Sign in to saveJalpaite is a rare copper silver sulfide mineral with formula Ag3CuS2.
Key facts
- Mineral.name
- Jalpaite
- Mineral.image
- Jalpaite-rom38a.jpg
- Mineral.caption
- Jalpaite crystals from Jalpa, Municipio de Jalpa, Zacatecas, Mexico (size: 3.6 x 3.5 x 3.2 cm)
- Mineral.category
- Sulfide mineral
- Mineral.formula
- Ag3CuS2
- Mineral.IMAsymbol
- Jal
- Mineral.strunz
- 2.BA.45
- Mineral.system
- Tetragonal
- Mineral.class
- Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m)
- Mineral.symmetry
- I41/amd
- Mineral.unit cell
- a = 8.67, c = 11.75 [Å]; Z = 8
- Mineral.color
- Pale metallic gray
- Mineral.habit
- Irregular and foliated masses, inclusions in other minerals
- Mineral.cleavage
- Prismatic, good
- Mineral.fracture
- Subconchoidal
- Mineral.tenacity
- Sectile, malleable
- Mineral.mohs
- 2 - 2.5
- Mineral.luster
- Metallic
via Wikipedia infobox
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Encyclopedic overview
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Jalpaite is a rare copper silver sulfide mineral with formula Ag3CuS2.
It was first described in 1858 for an occurrence in the Leonora Mine, Jalpa, Zacatecas, Mexico and named after the locality. It occurs in low temperature hydrothermal veins at temperatures less than . Associated minerals include acanthite, mckinstryite, galena, sphalerite, pyrite, chalcopyrite, stromeyerite, polybasite, pearceite, tetrahedrite–tennantite and native silver.
Excerpted from Wikipedia’s “jalpaite” article, available under the CC BY-SA 4.0 licence.