| 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 Thornburg Mine (Los Ochos claims; Los Ochos Mine; Thornburg No. 1 Mine; T-1 Mine), Cochetopa Mining District (Cochetopa Creek Mining District), Saguache County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 380248 |
| Long-form Identifier: | 1:3:380248:9 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcedony |
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| 22.9km (14.2 miles) | ⓘGood Hope Mine (Mammoth Good Hope Mine; Mammoth-Good Hope Mine; Mammoth Chimney Mine), Vulcan, Vulcan Mining District (Cebolla Mining District; Domingo Mining District), Gunnison County, Colorado, USA |
| 47.0km (29.2 miles) | ⓘHouselog Creek, Saguache County, Colorado, USA |
| 56.3km (35.0 miles) | ⓘAmethyst Mine, Amethyst vein, Creede Mining District, Mineral County, Colorado, USA |
| 56.5km (35.1 miles) | ⓘLast Chance Mine, Amethyst vein, Creede Mining District, Mineral County, Colorado, USA |
| 56.6km (35.2 miles) | ⓘPoncha Pass Claim (3 Claims; Lucky Nos. 1), Poncha Pass Area, Chaffee County, Colorado, USA |
| 57.1km (35.5 miles) | ⓘUnnamed Fluorspar Deposit (MRDS - 10090937), Poncha Springs Area, Chaffee County, Colorado, USA |
| 57.6km (35.8 miles) | ⓘBachelor Mine, Amethyst vein, Creede Mining District, Mineral County, Colorado, USA |
| 57.7km (35.9 miles) | ⓘCommodore Mine, Amethyst vein, Creede Mining District, Mineral County, Colorado, USA |
| 59.1km (36.7 miles) | ⓘBulldog Mountain Mine, Creede Mining District, Mineral County, Colorado, USA |
| 63.2km (39.3 miles) | ⓘGunnison River Gorge, Gunnison County, Colorado, USA |
| References |
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