Sierrita Mts, Pima Co., Arizona, USA

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Chrysocolla : (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O
	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA 1.6 x 0.6 x 0.4 cm. A fine stalactitic thumbnail specimen of turquoise-colored chrysocolla with a translucent covering of microcrystalline quartz, from Arizona. Ex. Jamie Bird Collection.
© Rob Lavinsky	Photo ID: 217525 View Count: 25
Copper : Cu, Gypsum : Ca[SO₄] · 2H₂O
	Mission pit (Mission Mine [old]; East Pima Mine; Mission Porphyry Copper deposit), Mission complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA Arborescent copper crystals floating in cleavage of Gypsum. Field of view approx 4mm. Photo created using CombineZ software. Michael Cline specimen and photograph. Mindat.org Photo of the Day - 9th Sep 2008
© Michael Cline	Photo ID: 181213 View Count: 512
Copper : Cu, Gypsum : Ca[SO₄] · 2H₂O
	Twin Buttes Mine (Twin Buttes Open Pit Mine), Twin Buttes, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA Image is 3 mm wide. Copper crystals included in clear gypsum.
© 2004 D. Schläfli	Photo ID: 18305 View Count: 441
Copper : Cu
	Mission Mine (Mission underground mine), Mission complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA Dendritic copper included in gypsum. FOV 4mm. JBS specimen and photo.
© 2004 JBS	Photo ID: 19245 View Count: 373
Copper : Cu, Gypsum : Ca[SO₄] · 2H₂O
	Mission Mine (Mission underground mine), Mission complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA Transparent selenite crystal with bright native copper included inside. Under magnification the copper can be seen to be thin, branching crystals. Beautiful. No damage. Overall size of mineral specimen: 6x4x3 cm. Size of individual crystals: 2-4 mm.
© 2002 John H. Betts	Photo ID: 5864 View Count: 338
Copper : Cu
	Mission complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA Branching, curved formation of brilliant native copper crystals. Central crystals are up to 3 cm long with many 1-5 mm crystals growing off them. No damage. Ex. A. Stevenson collection #335. Overall size of mineral specimen: 30x15x10 mm. Size of individual crystals: 1-30 mm.
© 2001 John H. Betts	Photo ID: 1258 View Count: 331
Copper : Cu, Gypsum : Ca[SO₄] · 2H₂O
	Mission Mine (Mission underground mine), Mission complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA This is BY FAR, the FINEST, LARGEST and BEST, Mission Mine, Arizona micro-dendritic copper in a transparent gypsum cleavage slab that we have offered at auction. This large, bladed CABINET specimen compares very favorably with anything that has been in the Gallery. Old and very choice material we do not see except in old recycled collections, as ...
© Rob Lavinsky	Photo ID: 38334 View Count: 227
Copper : Cu, Gypsum (Var: Selenite) : Ca[SO₄] · 2H₂O
	Mission Mine (Mission underground mine), Mission complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA These Copper included Gypsum specimens are very old material and almost never seen for sale these days. Even harder to obtain are specimens that are as richly included by Copper as this one is. This Gypsum is overloaded with with dendritic Copper crystals. A fine example from this historic location. specimen size = 9 x 3.8 x 1.3 cm.
© Russell G. Rizzo	Photo ID: 96177 View Count: 124
Copper : Cu, Gypsum : Ca[SO₄] · 2H₂O
	Mission Mine (Mission underground mine), Mission complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA 9.9 x 4.2 x 1.1 cm. A fine specimen of bright, micro-dendritic copper in a sawed, transparent gypsum slice from the Mission Mine of Arizona. Ex. Stoudt Collection.
© Rob Lavinsky	Photo ID: 177370 View Count: 94
Copper : Cu, Gypsum : Ca[SO₄] · 2H₂O
	Mission Mine (Mission underground mine), Mission complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA 8.7 x 3.7 x 1.8 cm. A VERY FINE, SUPER RICH and SHOWY specimen of bright, micro-dendritic copper in a sawed, transparent gypsum cleavage from the Mission Mine of Arizona. Old and very choice material. Such thick windowpane slices with such rich forests of copper inside are almost never available! In person, looking at the internal meshwork, you ...
© Rob Lavinsky	Photo ID: 158588 View Count: 86