| Locality type: | Mine |
| Classification |
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| Species: | Sillimanite |
| Formula: | Al2(SiO4)O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Sillimanite data |
| Locality Data: | Click here to view Bon Ton Mine, Monarch Mining District, Chaffee County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 736558 |
| Long-form Identifier: | 1:3:736558:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Sillimanite |
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| 30.8km (19.2 miles) | ⓘCinderella, Chaffee County, Colorado, USA |
| 40.1km (24.9 miles) | ⓘSedalia Mine (Sedalia Copper Mine), Sedalia Mining District, Chaffee County, Colorado, USA |
| 41.8km (26.0 miles) | ⓘAce High - Jackpot Prospect, Turret Mining District, Chaffee County, Colorado, USA |
| 42.4km (26.3 miles) | ⓘIndependence Mine, Turret Mining District, Chaffee County, Colorado, USA |
| 46.6km (29.0 miles) | ⓘCalumet Mine, Turret Mining District, Chaffee County, Colorado, USA |
| 66.8km (41.5 miles) | ⓘTurquoise Lake Occurrence, St. Kevin - Independence, Lake County, Colorado, USA |
| 76.0km (47.2 miles) | ⓘMine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA |
| 76.0km (47.2 miles) | ⓘCotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA |
| 79.9km (49.7 miles) | ⓘBetty Mine (Lone Chimney Mine; Betty Lowe), Guffey Mining District, Park County, Colorado, USA |
| 81.3km (50.5 miles) | ⓘDevil's Hole Mine, Fremont County, Colorado, USA |
| References |
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Berke, Edward H., Spry, Paul G., Heimann, Adriana, Teale, Graham S., Johnson, Benjamin, von der Handt, Anette, Alers, Brian, Shallow, John M. (2023) The genesis of metamorphosed Paleoproterozoic massive sulphide occurrences in central Colorado: geological, mineralogical and sulphur isotope constraints. Geological Magazine, 160 (7) 1345-1375 doi:10.1017/s0016756823000407 |
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