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Biotite from
Hercules Mine (Beryl claim; Hercules claim; Hercules group; Hercules prospect), Ramona, Ramona Mining District, San Diego County, California, 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
Comments:Occurs as inclusions of altered wall-rock.
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Hercules Mine (Beryl claim; Hercules claim; Hercules group; Hercules prospect), Ramona, Ramona Mining District, San Diego County, California, USA
Data Identifiers
Mindat Occurrence Record ID:689536
Long-form Identifier:1:3:689536:5
GUID (UUID V4):29806a2e-dc4d-4956-b547-dff80afdc02c
Nearest other occurrences of Biotite
0.2km (0.1 miles) ⓘLittle Three Mine, Ramona, Ramona Mining District, San Diego County, California, USA
0.2km (0.1 miles) ⓘLookout Mine (Hercules group; Lookout prospect; Upper Hercules mine), Ramona, Ramona Mining District, San Diego County, California, USA
0.7km (0.4 miles) ⓘSurprise Mine, Ramona, Ramona Mining District, San Diego County, California, USA
1.3km (0.8 miles) ⓘA.B.C. Mine (ABC Mine; Daggett & MacIntosh; Daggett group), Ramona, Ramona Mining District, San Diego County, California, USA
16.2km (10.1 miles) ⓘRose Quartz Mine (Patton lode; Patten lode; Powers group; Crystal Quartz; White Quartz; Sante Fe Gem), Mesa Grande, Mesa Grande Mining District, San Diego County, California, USA
17.1km (10.6 miles) ⓘHimalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
18.8km (11.7 miles) ⓘEl Capitan Quarry, Lakeside, San Diego County, California, USA
19.7km (12.3 miles) ⓘHelvetia Mine, Julian, Julian Mining District, San Diego County, California, USA
26.5km (16.5 miles) ⓘClark Mine, Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
26.7km (16.6 miles) ⓘVictor Mine (Big Buck mine; Big Buck prospect), Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
References
Foord, Eugene E., Martin, Robert F., Spaulding, Louis B., Mason, Roger A. (1989) Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. The Mineralogical Record, 20 (2) 101-127p.106
 
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