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Pyrolusite : MnO2 | |
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Lake Valley District, Sierra Co., New Mexico, USA Black prismatic crystals, FOV 8 mm. |
| © FL Murray | Photo ID: 78550 View Count: 162 |
Pyrolusite : MnO2 | |
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Lake Valley District, Sierra Co., New Mexico, USA Pyrolusite pseudomorphous after ramsdellite. New Mexico Bureau of Mines and Mineral Resources, Mineral Museum no. 9454. Gift of Dick Jones. P. Cristofono photo. |
| © 2008 Peter Cristofono | Photo ID: 155719 View Count: 96 |
Pyrolusite : MnO2 | |
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Lake Valley District, Sierra Co., New Mexico, USA Black Pyrolusite needlelike crystals, specimen 8 cm. Photo by Frank L, Murray |
| Photo ID: 156739 View Count: 90 | |
Ramsdellite : Mn4+O2 | |
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Lake Valley District, Sierra Co., New Mexico, USA Large mass of radiating ramsdellite crystals with terminated crystals on one end of the specimen where they grew in a void allowing complete crystal growth. Ex. Robert C. Linck (1905-1970). Overall size of mineral specimen: 11x10x8 cm. Size of individual crystals: 3-7 cm. |
| © 2003 John H. Betts | Photo ID: 9507 View Count: 667 |
Ramsdellite : Mn4+O2 | |
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Lake Valley District, Sierra Co., New Mexico, USA A lovely 4.4 by 3.7 cms specimen consisting of masses of small and very lustrous black crystals of Ramsdellite covering the matrix. John Sobolewski specimen and photograph. |
| © John Sobolewski | Photo ID: 43447 View Count: 304 |
Ramsdellite : Mn4+O2 | |
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Sierra Bella Group, Lake Valley District, Sierra Co., New Mexico, USA From Sierra County, New Mexico. Mine or district is not known. Specimen is 12 mm wide. Photo by Phil McCollum |
| Photo ID: 134959 View Count: 145 | |
Ramsdellite : Mn4+O2 | |
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Lake Valley District, Sierra Co., New Mexico, USA 15 mm tall specimen. Collected in 1998. RFC T1671. |
| © Michael C. Roarke | Photo ID: 99153 View Count: 140 |
Ramsdellite : Mn4+O2 | |
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Lake Valley District, Sierra Co., New Mexico, USA New Mexico Bureau of Mines and Mineral Resources, Mineral Museum no. 15220. P. Cristofono photo. |
| © 2008 Peter Cristofono | Photo ID: 155047 View Count: 137 |
Ramsdellite : Mn4+O2 | |
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Lake Valley District, Sierra Co., New Mexico, USA I recieved this in partial trade to Alfredo Petrov for the old Slovenian Wulfenite that PuTzu(The-Uncarved Block) got from Jasun MacAvoy. Justin recieved it as part of a trade, and gave it to me to trade for thumbnails for my collection. Justin, Alfredo, and Jolyon all told me that it was a very nice specimen, and that makes me happy. ... |
| © 2008 Brandy Naugle | Photo ID: 151442 View Count: 114 |
Ramsdellite : Mn4+O2 | |
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Lake Valley District, Sierra Co., New Mexico, USA 4.7 x 4.0 x 2.4 cm. Scintillating, metallic-gray to iridescent brassy and green ramsdellite needles richly line a vug in botryoidal matrix. This showy and excellent specimen is from the Type Locality - the Lake Valley District of New Mexico. Ramsdellite is a rare manganese oxide and this is superb material. Ex. Ed Ruggiero Collection and purchased ... |
| © Rob Lavinsky | Photo ID: 210861 View Count: 38 |
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