| Locality type: | Mine |
| 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 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 |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 490249 |
| Long-form Identifier: | 1:3:490249:2 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcedony |
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| 2.2km (1.3 miles) | ⓘLast Chance Mine (Lower Adit; Kramer Mine; Adit No. 1; Adit No. 2), Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 2.9km (1.8 miles) | ⓘUnnamed Fluorspar Deposit (MRDS - 10087834), Browns Canyon Mining District, Chaffee County, Colorado, USA |
| 14.5km (9.0 miles) | ⓘUnnamed Fluorspar Deposit (MRDS - 10090937), Poncha Springs Area, Chaffee County, Colorado, USA |
| 21.7km (13.5 miles) | ⓘPoncha Pass Claim (3 Claims; Lucky Nos. 1), Poncha Pass Area, Chaffee County, Colorado, USA |
| 28.0km (17.4 miles) | ⓘTrout Creek Lycopsid Fossil Forest, Chaffee County, Colorado, USA |
| 33.5km (20.8 miles) | ⓘAntero Junction, South Park, Park County, Colorado, USA |
| 35.2km (21.9 miles) | ⓘSouth Park salt works, Antero Junction, South Park, Park County, Colorado, USA |
| 40.0km (24.9 miles) | ⓘBuffalo Peaks, Chaffee County, Colorado, USA |
| 45.8km (28.4 miles) | ⓘThirtyone Mile Mountain, Guffey Mining District, Park County, Colorado, USA |
| 53.7km (33.4 miles) | ⓘGaro Deposit (Shirley May Mine; Duvall Discovery), Garo Area, Park County, Colorado, USA |
| References |
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