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Biotite from
Juan Diego Mine No. 1 (Juan Diego No. 1 deposit; Rainbow Mine; Rainbow prospects), Little Cahuilla Mountain, Cahuilla Mining District, Riverside Co., California, USA

Locality type:Mine
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:Crother R. A. (1992) Host Rock Lithologies and Structural Constraints on Complex Pegmatites in the San Jacinto Mountains of California. Department of Geological Sciences, California State Polytechnic University, Pomona; June.
Associated Minerals Based on Photo Data:
Quartz3 photos of Biotite associated with Quartz at this locality.
Hornblende2 photos of Biotite associated with Hornblende at this locality.
Albite-Anorthite Series2 photos of Biotite associated with Albite-Anorthite Series at this locality.
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Juan Diego Mine No. 1 (Juan Diego No. 1 deposit; Rainbow Mine; Rainbow prospects), Little Cahuilla Mountain, Cahuilla Mining District, Riverside Co., California, USA
Nearest other occurrences of Biotite
2.7km (1.7 miles) Granitic pegmatite occurrence (group II; younger pegmatites), Little Cahuilla Mountain, Cahuilla Mining District, Riverside Co., California, USA
2.7km (1.7 miles) Andalusite pegmatite (group I; older pegmatites), Little Cahuilla Mountain, Cahuilla Mining District, Riverside Co., California, USA
7.7km (4.8 miles) Anita Mine (Magee Mine; Magee & Dougherty Mine; Sage Mine), Red Mountain, Cahuilla Mining District, Riverside Co., California, USA
27.8km (17.3 miles) Blue Lady Mine (Blue Tourmaline claim; Blue Bell deposit; Blue Bell mine; Exposition claim; Panama claim; San Diego claim; San Diego group), Chihuahua Valley, Warner Springs Mining District, San Diego Co., California, USA
29.6km (18.4 miles) Hazen Corundum prospect (Unnamed Corundum prospect), Soboba Hot Springs (Ritchey Hot Springs; White Sulphur Spring), San Jacinto Mts, Riverside Co., California, USA
29.8km (18.5 miles) Unnamed Corundum occurrences [2], Soboba Hot Springs (Ritchey Hot Springs; White Sulphur Spring), San Jacinto Mts, Riverside Co., California, USA
30.9km (19.2 miles) Carmelita Mine (Big Spring mine; Blue Gem claim; Crest Gem mine; Elinor deposit; Elinor mine; Estudillo mine; French Pete mine; MS 6130; Peter Cabat mine), Chihuahua Valley, Warner Springs Mining District, San Diego Co., California, USA
33.8km (21.0 miles) Tourmaline Queen Mine (MS 6458; Queen mine; Tourmaline Queen group; Tourmaline Queen No. 1 claim; Tourmaline Queen No. 2 claim; Tourmaline Queen No. 3 claim), Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego Co., California, USA
33.8km (21.0 miles) Little Joe adit, Stewart Mine (MS 6162; Stewart Lithia mine), Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego Co., California, USA
33.9km (21.0 miles) Little Joe No. 2 adit (Joe 2 adit; Little Joe II adit), Stewart Mine (MS 6162; Stewart Lithia mine), Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego Co., California, USA
 
Mineral and/or Locality  
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