| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Comments: | Occurs in spherulites in obsidian. |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Cristobalite | ⓘ2 photos of Opal associated with Cristobalite at this locality. |
| Orthoclase | ⓘ2 photos of Opal associated with Orthoclase at this locality. |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Unnamed lava flow [1], Sugarloaf Mountain, Inyo County, California, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 637020 |
| Long-form Identifier: | 1:3:637020:6 |
| GUID (UUID V4): | 24d0600b-bb05-4548-b365-9ca08d2f8ecc |
| Nearest other occurrences of Opal |
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| 1.7km (1.0 miles) | ⓘLittle Lake Perlite deposits (Desert Materials Corp. deposit), Sugarloaf Mountain, Inyo County, California, USA |
| 4.5km (2.8 miles) | ⓘCoso Mine (Devil's Kitchen; Atlas; Lynch & Lynch; Nicol; Walley-Mickey & Wheeler), Coso Hot Springs deposit, Coso Hot Springs, Inyo County, California, USA |
| 6.2km (3.9 miles) | ⓘWheeler Area Mine (Coso Mine), Coso Mine (Devil's Kitchen; Atlas; Lynch & Lynch; Nicol; Walley-Mickey & Wheeler), Coso Hot Springs deposit, Coso Hot Springs, Inyo County, California, USA |
| 26.2km (16.3 miles) | ⓘGreen Velvet claims (Green Velvet claim; Green Velvet group), Inyo County, California, USA |
| 36.6km (22.7 miles) | ⓘCuster Mine, Darwin, Darwin Mining District, Darwin Hills, Inyo County, California, USA |
| 67.9km (42.2 miles) | ⓘNowak Mine (Last Chance Opal Mine; Nowak Fire Opal Mine; Cowden Mine), Silica Gem claims, Last Chance Canyon, El Paso Mountains District, Kern County, California, USA |
| 67.9km (42.2 miles) | ⓘBarnett Opal Mine, Silica Gem claims, Last Chance Canyon, El Paso Mountains District, Kern County, California, USA |
| 69.1km (42.9 miles) | ⓘPetrified Forest, Ricardo, El Paso Mountains District, Kern County, California, USA |
| 72.9km (45.3 miles) | ⓘRed Rock Canyon prospects, Ricardo, El Paso Mountains District, Kern County, California, USA |
| 75.7km (47.1 miles) | ⓘMabel S claim, Randsburg, Kern County, California, USA |
| References |
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Unnamed lava flow [1], Sugarloaf Mountain, Inyo County, California, USA