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Biotite from
Johnny Feldspar Mine, El Paso Mining District, El Paso County, Colorado, 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
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Johnny Feldspar Mine, El Paso Mining District, El Paso County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:374231
Long-form Identifier:1:3:374231:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
11.1km (6.9 miles) ⓘMount Rosa, El Paso County, Colorado, USA
11.3km (7.0 miles) ⓘStove Mountain (Cookstove Mountain), El Paso County, Colorado, USA
15.4km (9.6 miles) ⓘSpecimen Rock, El Paso County, Colorado, USA
15.4km (9.6 miles) ⓘSentinel rock (Specimen rock), Pikes Peak, El Paso County, Colorado, USA
18.6km (11.6 miles) ⓘCrystal Park area, Crystal Park, El Paso County, Colorado, USA
19.1km (11.9 miles) ⓘCameron Cone, Crystal Park, El Paso County, Colorado, USA
23.6km (14.7 miles) ⓘPikes Peak, El Paso County, Colorado, USA
23.7km (14.7 miles) ⓘGold Sovereign Mine (Jackson Shaft), Cripple Creek Mining District, Teller County, Colorado, USA
26.6km (16.5 miles) ⓘOphelia Tunnel (Gold Exploration; Moffat Tunnel), Cripple Creek Mining District, Teller County, Colorado, USA
26.8km (16.7 miles) ⓘPopes Bluff, Colorado Springs, El Paso County, Colorado, USA
References
Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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