wigmund: From Mindat.Org Photo Of The Day; November 6,…
From Mindat.Org Photo Of The Day; November 6, 2016:
Conichalcite: CaCu(AsO4)(OH); Quartz: SiO2
Locality: Gold Chain Mine, Mammoth, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Green crystalline spheres of Conichalcite on Quartz that has been slightly stained by iron oxides. I collected this specimen myself on May 28, 2016. Collected by: Alex Earl
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