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Azurite: Cu3(CO3)2(OH)2 Malachite: Cu2(CO3)(OH)2
Comments: Dark blue stubby pyramidal azurite crystals and green botryoidal-shaped radial aggregates of malachite. Location: Nevada Lode Mine, San Juan Co., Utah, USA. Scale: 4 cm. © Dave Barthelmy
Azurite: Cu3(CO3)2(OH)2 Clinotyrolite: Ca2Cu9[(As,S)O4]4(OH)10·10(H2O)
Comments: Light blue acicular crystals of clinotyrolite on dark blue azurite. Location: Lovelock mine, Churchill County, Nevada, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Azurite: Cu3(CO3)2(OH)2
Comments: Sharp, dark blue, crystalline azurite group. Location: Puit IX, Touissit, Oujda. Scale: 5 x 3.3 x 1.3 cm. © Fabre Minerals
Azurite: Cu3(CO3)2(OH)2 Cyanotrichite: Cu4Al2(SO4)(OH)12·2(H2O)
Comments: Blue, hairy crystals of cyanotrichite with dark-blue, blocky azurite on a green, malachite matrix. Location: Maid of Sunshine Mine, Cochise County, Arizona, USA. Scale: See Image. © Jeff Weissman / Photographic Guide to Mineral Species