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Biotite from
Fair-U Occurrence, Fish Creek Mining District, Routt Co., Colorado, USA

Locality type:Occurrence
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
References
References:Minerals of Colorado (1997) Eckel, E. B.
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Fair-U Occurrence, Fish Creek Mining District, Routt Co., Colorado, USA
Nearest other occurrences of Biotite
24.9km (15.5 miles) Greenville Mine (Greenville Shaft prospect), Clark, Routt Co., Colorado, USA
55.1km (34.2 miles) Troutman Draw, Pearl Mining District, Jackson Co., Colorado, USA
57.5km (35.7 miles) Caprock prospect, Pearl Mining District, Jackson Co., Colorado, USA
65.3km (40.6 miles) Unnamed vermiculite prospect, Northgate Mining District, Jackson Co., Colorado, USA
73.1km (45.4 miles) Platt Pegmatite Mine (Uranium King Mine; Platte mine), Big Creek pegmatite District, Carbon Co., Wyoming, USA
76.2km (47.4 miles) Rabbit Ears Lamproite, Rabbit Ears Pass, Middle Park, Grand Co., Colorado, USA
77.0km (47.9 miles) Funk's Mine (George-Funk mica pegmatite prospects), Fox Park, Albany Co., Wyoming, USA
83.9km (52.2 miles) Maudem Group Mine, Keystone Mining District - Douglas Creek Mining District, Medicine Bow Mts, Albany Co., Wyoming, USA
90.9km (56.5 miles) New Rambler mine (Rambler Mine; Holmes Mine; Electrolytic Mine; Great Rambler Mine), New Rambler Mining District, Albany Co., Wyoming, USA
93.0km (57.8 miles) East Inlet area, Rocky Mountain National Park, Grand Co., Colorado, USA
 
Mineral and/or Locality  
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