| Locality type: | Quarry |
| Classification |
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| Species: | Cryptomelane |
| Formula: | K(Mn74+Mn3+)O16 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Cryptomelane data |
| Locality Data: | Click here to view Ruby Cliff Quarry, Silver Cliff Mining District, Custer County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 433698 |
| Long-form Identifier: | 1:3:433698:3 |
| GUID (UUID V4): | 77ac86e5-fa46-4bee-bd92-9e28b65e5931 |
| Nearest other occurrences of Cryptomelane |
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| 0.8km (0.5 miles) | ⓘSilver Cliff Quarry, Silver Cliff Mining District, Custer County, Colorado, USA |
| 1.0km (0.6 miles) | ⓘRacine Boy Mine, Silver Cliff Mining District, Custer County, Colorado, USA |
| 97.1km (60.3 miles) | ⓘDel Norte Thunder Egg beds, Saguache County, Colorado, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (volume) | | Argentian Cryptomelane and Bromargyrite in Volcanic Rocks near Silver Cliff, Colorado GEOLOGICAL SURVEY... Argentian Cryptomelane and Bromargyrite in Volcanic Rocks near Silver Cliff, Colorado By FRED A. HILDEBRAND...describes silver minerals, especially a new variety of cryptomelane, and explains why unmined silver ores...ores remain at the surface in this old mining district UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON................................................. Mining history ...................................... |
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