| Locality type: | Mine |
| Classification |
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| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view North Hardin Mine, Beaver Creek, Ashe County, North Carolina, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 876555 |
| Long-form Identifier: | 1:3:876555:0 |
| GUID (UUID V4): | 4f3e72e4-78a1-477a-85f0-7735d91c5fb0 |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | MISCELLANEOUS NONMETALLIC PRODUCTS. MICA DEPOSITS OF NORTH CAROLINA. By DOUGLAS B. STERRETT. INTRODUCTION. The...most important producers among these have been North Carolina, South Dakota, New Hampshire, Virginia, Colorado...Alabama, Georgia, and Idaho. For many years North Carolina has led in both quantity and value of output...amount North Carolina is credited with $127,870. The value of the mica production in North Carolina during...Geological Survey and the North Carolina Geological Survey. The greater part of the mine descriptions were obtained |  | | Report (volume) | | General features____________________________ Coosa County _________ ____________________ Randolph County...Royal Gorge region_________________________ Texas Creek region _________________ _ _ Jefferson County__...Cherokee County_____________________________ 72 Elbert County _____________________________ 75 Hall County__...County_______________________________ 76 Hart County. ___ __ __________________ 77, Lumpkin and Union counti...___________ S3 Pickens County _______-______________________ 83 Rabun County-_____________________________ |  | | Report (issue) | | Mica Deposits of the Blue Ridge in North Carolina GEOLOGICAL SURVEY PROFESSIONAL PAPER 577 Work done...done in part in cooperation with the North Carolina Department of Conservation and Development and in part...Administration Mica Deposits of the Blue Ridge in North Carolina By FRANK G. LESURE GEOLOGICAL SURVEY PROFESSIONAL... Work done in part in cooperation with the North Carolina Department of Conservation and Development... Geologic map of part of the Blue Ridge of North Carolina and Tennessee. 2-6. Maps showing location of |
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