| Locality type: | Tunnel |
| Classification |
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| Species: | Astrophyllite |
| Formula: | K2NaFe72+Ti2[Si4O12]2O2(OH)4F |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Dealer/Collection Label |
| Associated Minerals Based on Photo Data: |
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| Thorite | 1 |
| Quartz | 1 |
| Microcline | 1 |
| Zircon | 1 |
| Riebeckite | 1 |
| Rutile | 1 |
| Fluorite | 1 |
| Data |
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| Mineral Data: | Click here to view Astrophyllite data |
| Locality Data: | Click here to view Eureka Tunnel (1-15 pegmatite), St Peters Dome, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 746377 |
| Long-form Identifier: | 1:3:746377:8 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Astrophyllite |
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| 0.8km (0.5 miles) | ⓘCheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA |
| 0.8km (0.5 miles) | ⓘSt Peters Dome, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA |
| 1.1km (0.7 miles) | ⓘHillside Park claims, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA |
| 2.1km (1.3 miles) | ⓘStove Mountain (Cookstove Mountain), El Paso County, Colorado, USA |
| 2.7km (1.7 miles) | ⓘStove Mountain Mineral Locality (Cook Stove Mountain Mineral Locality), Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA |
| 3.4km (2.1 miles) | ⓘRosa No. 1 trench, Mount Rosa, El Paso County, Colorado, USA |
| 3.8km (2.4 miles) | ⓘMount Rosa, El Paso County, Colorado, USA |
| References |
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Eureka Tunnel, St Peters Dome, Cheyenne Mining District, El Paso County, Colorado, USA