| Locality type: | Mine |
| Classification |
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| Species: | Muscovite |
| Formula: | KAl2(AlSi3O10)(OH)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Muscovite data |
| Locality Data: | Click here to view Elkhorn Mine (Tinsley Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 211330 |
| Long-form Identifier: | 1:3:211330:2 |
| GUID (UUID V4): | 1cde3a47-acac-48f7-be18-e65e3c6fb3e8 |
| Nearest other occurrences of Muscovite |
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| 0.3km (0.2 miles) | ⓘHot Shot mine, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 0.6km (0.4 miles) | ⓘBurt Mica Mine (Bur; Burk), Custer Mining District, Custer County, South Dakota, USA |
| 1.1km (0.7 miles) | ⓘEarl Lode, Custer Mining District, Custer County, South Dakota, USA |
| 2.0km (1.3 miles) | ⓘBeecher No. 3, Beecher Lode, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 2.0km (1.3 miles) | ⓘBull Moose Mine, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 3.0km (1.9 miles) | ⓘGlenwood Mica Mine (Hampton Mine), Custer Mining District, Custer County, South Dakota, USA |
| 3.4km (2.1 miles) | ⓘDominion Rose Group Claims, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 3.5km (2.1 miles) | ⓘPink Rose Lode Quarry (Scott Rose Quartz Mine; Scott Mine; Rose Quartz Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 3.8km (2.4 miles) | ⓘShamrock No. 1 Lode Mine, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 4.1km (2.5 miles) | ⓘCuster Mountain lode (Snookum mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| References |
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| Reference Search (possible matching items) |
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 | Staatz, M.H., Page, L.R., Norton, J.J., Wilmarth, V.R. (1963) Exploration for beryllium at the Helen Beryl, Elkhorn, and Tin Mountain pegmatites, Custer County, South Dakota. Professional Paper 297c. US Geological Survey doi:10.3133/pp297c | Report (issue) | | at the Helen Beryl, Elkhorn and Tin Mountain Pegmatites Custer County, South Dakota GEOLOGICAL SURVEY PROFESSIONAL...at the Helen Beryl, Elkhorn and Tin Mountain Pegmatites Custer County, South Dakota By MORTIMER H. STAATZ...Beryl pegmatite _____________________________ _ Mine workings ________________________________ _ Production...________________________________ _ Albite-quartz-muscovite pegmatite (wall zone) _______________________________...________ _ Granitic albite-quartz-muscovite pegmatite_ Gneissoid albite-biotite-quartz pegmatite __ _ |  | | Report (issue) | | STATE OF SOUTH DAKOTA Nils Boe, Governor MINERALOGY OF THE BLACK HILLS by WILLARD LINCOLN ROBERTS...Associate in Mineralogy Museum of Geology, South Dakota School of Mines and Technology and GEORGE RAPP...Department of Geology and Geological Engineering, South Dakota School of Mines and Technology With the Editorial...Mineralogy South Dakota School of Mines and Technology BULLETIN NUMBER 18 of the South Dakota School of...of Mines and Technology Rapid City, South Dakota PUBLICATIONS STAFF F. L. Partlo J. T. Thomas President |
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