Chalcoalumite from Bisbee – A very fine and unusual specimen of chalcoalumite, the light blue-green bubbles of crystals fill the cavity of rock edged in azurite and malachite. 12″ tall, this hefty piece is quite a show-stopper in the Arizona Minerals collection presented at the Tucson Rock and Gem Show 2012.
I believe Bisbee, Arizona is the type locality for this mineral, likely the Copper Queen Mine. The association with copper and the contrasting deep royal blue of the azurite make this a very pretty specimen. I can’t even imagine the “value” of this one if it were on the market today.
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