| Locality type: | Mine |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Sleeper mine, Awakening Mining District, Humboldt County, Nevada, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 599001 |
| Long-form Identifier: | 1:3:599001:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 40.8km (25.4 miles) | ⓘThacker Pass deposit, McDermitt Caldera Center, Humboldt County, Nevada, USA |
| 52.9km (32.8 miles) | ⓘAllied Group Nos. 1-22, Humboldt County, Nevada, USA |
| 64.1km (39.8 miles) | ⓘOld Man Spring Prospect, Disaster Mining District, Montana Mountains, Humboldt County, Nevada, USA |
| 65.6km (40.8 miles) | ⓘBuckskin Mountain, National Mining District, Humboldt County, Nevada, USA |
| 66.6km (41.4 miles) | ⓘBuckskin National mine, Buckskin Mountain, National Mining District, Humboldt County, Nevada, USA |
| 67.3km (41.8 miles) | ⓘCordero Mine, Opalite Mining District, Humboldt County, Nevada, USA |
| 67.9km (42.2 miles) | ⓘRedhouse Barite Mine, Potosi Mining District, Osgood Mountains, Humboldt County, Nevada, USA |
| 68.2km (42.4 miles) | ⓘMcDermitt Mine, Opalite Mining District, Humboldt County, Nevada, USA |
| 71.1km (44.2 miles) | ⓘDisaster Peak property (Nevada Cinnabar Group; Bretchell Mercury Deposit), Disaster Mining District, Montana Mountains, Humboldt County, Nevada, USA |
| 72.2km (44.9 miles) | ⓘHumboldt Sulphur Company Mine, Rabbit Hole Mining District, Humboldt County, Nevada, USA |
| References |
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