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LL881 - Dioptase Ray Mine, Pinal Co., Arizona, USA cabinet - 13 x 8.5 x 4 cm Beautiful large specimen of Dioptase on drusy Quartz over Chrysocolla and Malachite. This looks like something out of Africa rather than the USA, but it's old Arizona material with large isolated Dioptase crystals to 7mm in size. A big and colorful Arizona classic that will add pop to a mineral case. ©2010-2018 Marin Mineral |