| Classification |
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| Species: | Sillimanite |
| Formula: | Al2(SiO4)O |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Sillimanite data |
| Locality Data: | Click here to view Round Mountain Group, Tarryall Springs Mining District (Puma City), Park County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1230906 |
| Long-form Identifier: | 1:3:1230906:5 |
| GUID (UUID V4): | 011378fc-c054-4d5a-a50a-0a02506c80ea |
| Nearest other occurrences of Sillimanite |
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| 9.0km (5.6 miles) | ⓘGneiss, Bryan Ranch area, Park County, Colorado, USA |
| 13.4km (8.4 miles) | ⓘBlue Mountain Mine, Tarryall Springs Mining District (Puma City), Park County, Colorado, USA |
| 32.8km (20.4 miles) | ⓘFamous Lode Mica Prospect (Famous Lodge Pegmatites; Little Joe From Kokomo Claim Adjoining), Micanite Mining District, Park County, Colorado, USA |
| 34.4km (21.4 miles) | ⓘBetty Mine (Lone Chimney Mine; Betty Lowe), Guffey Mining District, Park County, Colorado, USA |
| 36.3km (22.5 miles) | ⓘRed Mountain, Cripple Creek Mining District, Teller County, Colorado, USA |
| 38.6km (24.0 miles) | ⓘClimax Mine (Mine No. 8 U.S. Mica Company; Climax Mica Mine), Micanite Mining District (Currant Creek Mining District), Fremont County, Colorado, USA |
| 40.5km (25.1 miles) | ⓘWhopper Mine and Prospect, Micanite Mining District (Currant Creek Mining District), Fremont County, Colorado, USA |
| 62.8km (39.1 miles) | ⓘCalumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite deposit; Patented Placer claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret Mining District, Chaffee County, Colorado, USA |
| 64.6km (40.1 miles) | ⓘDevil's Hole Mine, Fremont County, Colorado, USA |
| 65.5km (40.7 miles) | ⓘIndependence Mine, Turret Mining District, Chaffee County, Colorado, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | GEOLOGY AND MINERAL RESOURCES OF SAN DIEGO COUNTY, CALIFORNIA By F. HAROLD WEBER JR., California...parts of several sections, by R. M. Stewart COUNTY REPORT California Division of Mines Ferry Building...CAMPBELL, Director AND GEOLOGY State Geologist COUNTY REPORT ^ Price $8.00 3 CONTENTS Page ABSTRACT...Lakeview Mountain tonalite Lake Wolford leucogranodiorite Woodson Mountain granodiorite Indian Mountain leucogranodiorite...rocks of the Salton Basin _ Miocene rocks Split Mountain formation Alverson andesite lava and associated |
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