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.
Hardness:
2 - 2.5
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Properties
Characteristics
Common Questions
General Info About Jalpaite
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Physical Properties of Jalpaite
Colors
Gray or dark gray
Streak
Black
Hardness
2 - 2.5 , Extremely soft
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Chemical Properties of Jalpaite
Formula
Ag3CuS2
Elements listed
Ag, Cu, S
Common Impurities
Fe
Characteristics of Jalpaite
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