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Anhydrite : CaSO4 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico Group of crystals 6cm tall. Photographed by, and in the collection of, Karl Volkman |
| © Karl Volkman | Photo ID: 12332 View Count: 574 |
Anhydrite : CaSO4, Calcite : CaCO3 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico Pale blue anhydrite crystal aggregate. The back and the crown are covered by small white calcite crystals. Specimen size: 7.7 x 3.6 x 1.5 cm. |
| © Christian Bracke | Photo ID: 66879 View Count: 221 |
Anhydrite : CaSO4 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico Harvard Museum of Natural History specimen no. 138447. Label is about 8 cm across. P. Cristofono photo. |
| © 2007 Peter Cristofono | Photo ID: 95296 View Count: 214 |
Anhydrite : CaSO4, Calcite : CaCO3 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico 10.2 x 6.6 x 6.4 cm. A very rare MATRIX Anhydrite specimen from Naica featuring a classic, powder blue color, sharp, lustrous prismatic Anhydrite crystal group measuring 5.0 cm on lustrous, rhombic, gemmy, light yellow color Calcite crystals. The specimen has a few other Anhdyrite crystals scattered throughout the matrix. Ex. Richard Kosnar ... |
| © Rob Lavinsky | Photo ID: 167133 View Count: 101 |
Calcite : CaCO3, Quartz : SiO2 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico Incredibly lustrous bundles of scalenohedra with a chlorite included thin quartz matrix forming a skirt. 7cm X 5cm X 4cm Mindat.org Photo of the Day - 5th Feb 2007 |
| © Geoffrey Krasnov | Photo ID: 89965 View Count: 464 |
Calcite : CaCO3 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico Calcite from Naica, Chihuahua Attractive Calcite - it looks as if it was zoned pseudomorphosed by snow. I'm sorry, but it is so unusual that I cannot say anything more scientific! Size:4.5 x 4.4 x 2.5 cm |
| © fabreminerals.com | Photo ID: 55718 View Count: 212 |
Calcite : CaCO3 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico Scalenohedrons to 3cm formed by thousands of smaller scalenohedrons jut in all directions from a large (12cm) central crystal. 8cm X 9cm X 12cm |
| © Geoffrey Krasnov | Photo ID: 89988 View Count: 143 |
Calcite : CaCO3 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico A multigenerational specimen consisting of an encrustation pseudomorph followed by a replacement of calcite after calcite with another generation of tiny scalenohedrons. Some minor chalcopyrite. 10cm X 4cm X 11cm |
| © Geoffrey Krasnov | Photo ID: 93347 View Count: 129 |
Calcite : CaCO3 | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico A superb cluster of interpenetrant rhombohedrons coated with a layer of yellowish calcite druise which is populated by tiny chalcopyrites. Secondary crystalization of white wheat sheaf bundles adorn the top on both sides. 9.5cm X 9.8cm X 3.5cm |
| © photo by Geoff Krasnov | Photo ID: 170830 View Count: 126 |
Calcite : CaCO3, Fluorite : CaF2, Lemon Quartz | |
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Naica Mine, Naica, Mun. de Saucillo, Chihuahua, Mexico Nice Pourple Fluorite over bi color Calcite with green Quartz Size 7 x 4x 4 cm. |
| Photo ID: 230207 View Count: 44 | |
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