Jalpaite
A variety of Minerals
What is Jalpaite?
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.
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Jalpaite Localities Map
See where Jalpaite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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Quick Facts
Physical Properties
- Color
- Gray or dark gray
- Hardness (Mohs)
- 2 - 2.5
- Streak
- Black
Chemical Properties
- Chemical Formula
- Ag3CuS2
- Elements
- Ag, Cu, S
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