Ajoite

Ajoite is a hydrated sodium potassium copper aluminium silicate hydroxide mineral. Ajoite has the chemical formula (Na,K)Cu7AlSi9O24(OH)6ยท3(H2O), and minor Mn, Fe and Ca are usually also present in the structure. Ajoite is used as a minor ore of copper. == Discovery == In August 1941 Harry Berman of Harvard University was collecting at Ajo, in Pi...
Found on http://en.wikipedia.org/wiki/Ajoite
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