Chalcophanite
Cole Mine, Bisbee, Cochise County, Arizona, USA
5.5 x 4.2 x 3.4 cm. Chalcophanite is a rare zinc, iron, manganese hydroxide. This fine, 3-dimensional, mammilary crust from the Cole Shaft at Bisbee is composed entirely of sparkly, purplish-black chalcophanite botryoids. The very rich Cole Shaft produced ore intermittently from 1905 to 1975. Complete all-around and pristine, with only contacting ...
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