| Classification |
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| Species: | Gypsum |
| Formula: | CaSO4 · 2H2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Gypsum data |
| Locality Data: | Click here to view Hay Draw, Meade County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 211559 |
| Long-form Identifier: | 1:3:211559:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Gypsum |
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| 1.7km (1.1 miles) | ⓘElk Creek, Meade County, South Dakota, USA |
| 52.0km (32.3 miles) | ⓘDillon Pass, Pennington County, South Dakota, USA |
| 59.5km (37.0 miles) | ⓘImlay, Pennington County, South Dakota, USA |
| 68.4km (42.5 miles) | ⓘBrooks Cave, Rapid City, Pennington County, South Dakota, USA |
| 68.5km (42.6 miles) | ⓘU.S. Gypsum Piedmont Operation, Unorganized mining district [4], Meade County, South Dakota, USA |
| 69.6km (43.2 miles) | ⓘWildcat Cave, Rapid City, Pennington County, South Dakota, USA |
| 71.0km (44.1 miles) | ⓘTilford Mine (U.S. Gypsum Company Mine), Unorganized mining district [4], Meade County, South Dakota, USA |
| 80.6km (50.1 miles) | ⓘBig Chief Mine, Glendale, Keystone Mining District, Pennington County, South Dakota, USA |
| 83.3km (51.8 miles) | ⓘCottonwood Creek tributary, Rockyford, Oglala Lakota County, South Dakota, USA |
| 98.9km (61.4 miles) | ⓘBull Moose Mine, Custer, Custer Mining District, Custer County, South Dakota, USA |
| References |
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