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Biotite from
Roscoe Beryl Mine (Roscoe pegmatite), Clear Creek pegmatite Province, Jefferson County, Colorado, USA


Locality type:Mine
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Roscoe Beryl Mine (Roscoe pegmatite), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:355448
Long-form Identifier:1:3:355448:7
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.8km (1.7 miles) ⓘHiwan Ranch, Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
2.9km (1.8 miles) ⓘHosa Lodge Mine, Evergreen Mining District (Malachite Mining District), Jefferson County, Colorado, USA
3.7km (2.3 miles) ⓘOld Soda Creek School Pegmatite, Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
6.3km (3.9 miles) ⓘFred Pierce Ranch (Ramstetter Quarry), Front Range, Jefferson County, Colorado, USA
6.9km (4.3 miles) ⓘBurroughs Mine (Traut-Rudin-Anderson Pegmatite; Sunrise Peak Mine), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
7.2km (4.5 miles) ⓘAjax Mica Mine (Floyd Hill Mica Mine), Clear Creek Pegmatite Province, Clear Creek County, Colorado, USA
8.5km (5.3 miles) ⓘGrover Mine (Grover pegmatite; Windsor), Clear Creek County, Colorado, USA
8.7km (5.4 miles) ⓘF.M.D. Mine, Evergreen Mining District (Malachite Mining District), Jefferson County, Colorado, USA
9.0km (5.6 miles) ⓘSeven Hills - Yetter Ranch Pegmatite Occurrence, Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
9.1km (5.6 miles) ⓘAubrey - Ladwig Mine (Aubrey Ladwig Lease; Gary Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
References
Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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