Copper in Gypsum (classic Arizona) Allen Dillwith Coll.

Mission Mine, San Xavier, Pima Co., Arizona
Small Cabinet, 7.6 x 4.0 x 1.1 cm
Start Time: 01/05/2019 6:45:00 pm (CST)
End Time: 01/10/2019 6:30:00 pm (CST)
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Item Description

An unusual combination in nature, known at its best from this old locality! bright copepr feathers are inside! Mission Mine gypsum cleavages included with copper crystals are an Arizona classic. A striking, 3.0 cm, dense nest of richly colored "feathers" of spinel-twinned copper crystals is visible on both sides of this showy, rich and highly representative example from the Allen Dillwith Collection.

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