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Biotite from
Sheridan Copper prospect [includes Rainbow prospect], Burnet County, Texas, USA


Locality type:Prospect
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 Sheridan Copper prospect [includes Rainbow prospect], Burnet County, Texas, USA
Data Identifiers
Mindat Occurrence Record ID:198244
Long-form Identifier:1:3:198244:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
4.5km (2.8 miles) ⓘClear Creek pegmatite, Burnet County, Texas, USA
5.0km (3.1 miles) ⓘPavitte Copper prospect, Burnet County, Texas, USA
8.1km (5.0 miles) ⓘBaringer Hill Mine, Bluffton, Llano County, Texas, USA
9.7km (6.0 miles) ⓘKingsland Granite Company Quarry (Petrick Quarry), Llano County, Texas, USA
10.8km (6.7 miles) ⓘPebble Beach pegmatites, Llano County, Texas, USA
13.0km (8.1 miles) ⓘBadu Hill quarry, Llano, Llano County, Texas, USA
16.2km (10.0 miles) ⓘWilliams pegmatites (Williams Gardens), Llano County, Texas, USA
22.4km (13.9 miles) ⓘKiam pegmatite, Llano County, Texas, USA
42.9km (26.6 miles) ⓘRode Ranch pegmatite, Llano County, Texas, USA
65.3km (40.6 miles) ⓘKothman tract, Mason County, Texas, USA
References
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
 
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