Category Sulfide mineral Strunz classification 2.BA.45 Space group I41/amd | Formula(repeating unit) Ag3CuS2 Crystal system Tetragonal | |
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Crystal class Ditetragonal dipyramidal (4/mmm)H-M symbol: (4/m 2/m 2/m) | ||
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 for the locality. It occurs in low temperature hydrothermal veins at temperatures less than 117 °C (243 °F). Associated minerals include acanthite, mckinstryite, galena, sphalerite, pyrite, chalcopyrite, stromeyerite, polybasite, pearceite, tetrahedrite–tennantite and native silver.
References
Jalpaite Wikipedia(Text) CC BY-SA