This chalcanthite is from the Planet Mine, 350 foot level, Planet, Santa Maria District, Buckskin Mountains, La Paz County, Arizona, USA. The Planet Mine produced ores of iron, copper, silver and gold from 1863 to 1937. Chalcanthite is a sulfate mineral that contains the elements Cu, S, O, and H. This specimen consists of a mixed copper mineral and clay matrix that hosts vein like deposits of long fibrous crystals. The crystals are translucent with a glass to silken luster. It can be displayed from several different sides and angles. This piece measures approximately 2 1/8 x 1 3/4 x 1 3/4 inches or 53 x 45 x 45 mm.
Note: There might be minor shedding of fibers or clay during shipping. It should not take away the characteristics of the piece.
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