| Locality type: | Tunnel |
| Classification |
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| Species: | Gypsum |
| Formula: | CaSO4 · 2H2O |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Dealer/Collection Label |
| Data |
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| Mineral Data: | Click here to view Gypsum data |
| Locality Data: | Click here to view K-7 Tunnel, Challis, Bay Horse Mining District, Custer County, Idaho, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1470103 |
| Long-form Identifier: | 1:3:1470103:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Gypsum |
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| 12.3km (7.7 miles) | ⓘThompson Creek Mine (Tungsten Jim Mine; Salmon River Scheelite Mine), Challis, Bay Horse Mining District, Custer County, Idaho, USA |
| 58.0km (36.0 miles) | ⓘPurple Spar claims, Little Fall Creek, Alta Mining District (Alto Mining District; Wildhorse Mining District), Custer County, Idaho, USA |
| 76.1km (47.3 miles) | ⓘEmpire Copper Mine, Mackay Mining District (Alder Creek Mining District; White Knob Mining District), Custer County, Idaho, USA |
| 93.5km (58.1 miles) | ⓘBoise - Rochester Mine (Old Chunk; Stedtman; General Pettit Lombard; Bagdad Chase), Atlanta Mining District, Elmore County, Idaho, USA |
| 97.2km (60.4 miles) | ⓘClear Creek Gypsum Deposit (Snowball Quarry ?), Gilmore Area, Lemhi County, Idaho, USA |
| References |
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