| Locality type: | Mountain |
| Classification |
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| Species: | Quartz var: Chalcedony |
| Formula: | SiO2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Chalcedony data |
| Locality Data: | Click here to view Thirtyone Mile Mountain, Guffey Mining District, Park County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 491328 |
| Long-form Identifier: | 1:3:491328:3 |
| GUID (UUID V4): | fc0ae8bc-3cc5-43cb-9238-14df68e3de45 |
| Nearest other occurrences of Chalcedony |
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| 28.5km (17.7 miles) | ⓘSpikebuck Mine, McIntyre Hills Area, Fremont County, Colorado, USA |
| 31.4km (19.5 miles) | ⓘGarden Park, Fremont County, Colorado, USA |
| 32.6km (20.3 miles) | ⓘBuck Mine, Cripple Creek Mining District, Teller County, Colorado, USA |
| 33.8km (21.0 miles) | ⓘDoctor Mine (Jackpot Mine), Cripple Creek Mining District, Teller County, Colorado, USA |
| 35.2km (21.9 miles) | ⓘGranite Mine (Independent Granite), Cripple Creek Mining District, Teller County, Colorado, USA |
| 43.8km (27.2 miles) | ⓘSouth Park salt works, Antero Junction, South Park, Park County, Colorado, USA |
| 43.8km (27.2 miles) | ⓘAntero Junction, South Park, Park County, Colorado, USA |
| 44.5km (27.6 miles) | ⓘUnnamed Fluorspar Deposit (MRDS - 10087834), Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 45.5km (28.2 miles) | ⓘLast Chance Mine (Lower Adit; Kramer Mine; Adit No. 1; Adit No. 2), Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 45.8km (28.4 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 |
| References |
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| Reference Search (possible matching items) |
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 | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |
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