Grandviewite, Cyanotrichite, Brochantite, Chalcoalumite
Grandview Mine, Horseshoe Mesa, Grandview Mining District, Coconino County, Arizona, USA
Grandviewite is an exceptionally rare hydrated copper aluminum hydroxyl-sulfate species, found in only one place in the world, the historic Grandview Mine inside of the Grand Canyon, Arizona. This species was approved in 2007, so it's a fairly new species. The piece consists of a predominant covering of radiating groups of rich deep blue ...
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