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MD-217523
Cyanotrichite
Thumbnail, 2.8 x 1.8 x 1.6 cm
Grand View Mine (Last Chance Mine; No. 1 Pat claim 3591; No. 5 Pat claim 3592a; No. 4 Pat claim 3592a; Canyon Copper Mine; Grand Canyon Mine), Cape Royal, Horseshoe Mesa, Grand Can
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Cyanotrichite (Hydrated Copper Aluminum Sulfate Hydroxide) typically forms acicular or hair-like crystals aggregated into radial clusters, tufts and sprays, as seen in this specimen. It is an aptly named mineral, since "cyano" and "trich" are derived from the Greek for blue and hair, respectively. Ex. Jaime Bird Collection.