1) Silver mineral 2) Sulfide mineral
Found on
https://www.crosswordclues.com/clue/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. Associated minerals include acanthite, mckinstryite, galena, sphalerite,...
Found on
http://en.wikipedia.org/wiki/Jalpaite
No exact match found.
