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Biotite from
Williams pegmatites (Williams Gardens), Llano County, Texas, USA


Locality type:Pegmatite Field
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 Williams pegmatites (Williams Gardens), Llano County, Texas, USA
Data Identifiers
Mindat Occurrence Record ID:200324
Long-form Identifier:1:3:200324:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
6.1km (3.8 miles) ⓘBadu Hill quarry, Llano, Llano County, Texas, USA
6.3km (3.9 miles) ⓘKiam pegmatite, Llano County, Texas, USA
8.3km (5.2 miles) ⓘKingsland Granite Company Quarry (Petrick Quarry), Llano County, Texas, USA
12.0km (7.4 miles) ⓘPebble Beach pegmatites, Llano County, Texas, USA
12.8km (7.9 miles) ⓘBaringer Hill Mine, Bluffton, Llano County, Texas, USA
16.2km (10.0 miles) ⓘSheridan Copper prospect [includes Rainbow prospect], Burnet County, Texas, USA
20.1km (12.5 miles) ⓘPavitte Copper prospect, Burnet County, Texas, USA
20.6km (12.8 miles) ⓘClear Creek pegmatite, Burnet County, Texas, USA
28.3km (17.6 miles) ⓘRode Ranch pegmatite, Llano County, Texas, USA
57.2km (35.5 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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