| Locality type: | Quarry |
| Classification |
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| Species: | Montmorillonite |
| Formula: | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Montmorillonite data |
| Locality Data: | Click here to view Obsidian Quarry, Silver Cliff Mining District, Custer County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 435140 |
| Long-form Identifier: | 1:3:435140:5 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Montmorillonite |
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| 54.9km (34.1 miles) | ⓘBrandt Claims, Beaver Creek Area, Soda Springs Park Area, Fremont County, Colorado, USA |
| 56.1km (34.9 miles) | ⓘVilla Grove Turquoise Mine, Bonanza Mining District (Kerber Creek Mining District; Blake Mining District), Saguache County, Colorado, USA |
| 68.9km (42.8 miles) | ⓘAjax Mine, Cripple Creek Mining District, Teller County, Colorado, USA |
| 71.8km (44.6 miles) | ⓘGlobe Hill, Cripple Creek Mining District, Teller County, Colorado, USA |
| 76.4km (47.5 miles) | ⓘAlderman deposit, Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 77.0km (47.8 miles) | ⓘColorado - American Mine (West Vein; Trefone Adit; East Vein; American Shaft; Mill Adit; Branch or Collins Vein), Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 78.1km (48.5 miles) | ⓘSnowflake Deposit, Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 78.5km (48.8 miles) | ⓘLast Chance Mine (Lower Adit; Kramer Mine; Adit No. 1; Adit No. 2), Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 78.6km (48.8 miles) | ⓘPuzzle mine, Poncha Springs, Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 78.6km (48.9 miles) | ⓘChimney Hill Mine (Morgan Ranch Deposits; Manganese Hill), Browns Canyon Mining District, Chaffee County, Colorado, USA |
| References |
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