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Biotite from
Three Musketeers Mine, Devils Head Pegmatite Mining District, Douglas 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 Three Musketeers Mine, Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:355106
Long-form Identifier:1:3:355106:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
3.6km (2.2 miles) ⓘDevils Head Occurrence (C.M.S.), Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
8.4km (5.2 miles) ⓘCramer Mine (Magnuson Quarry), Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
8.4km (5.2 miles) ⓘCramer No. 2 Quarry (Snowdrift Quarry), Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
9.3km (5.8 miles) ⓘLittle Anna, Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
11.6km (7.2 miles) ⓘRusty Pick Occurrence, Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
12.7km (7.9 miles) ⓘDenver Mine, Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
12.8km (8.0 miles) ⓘFern Creek, Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
13.2km (8.2 miles) ⓘSusy Belle Occurrence, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
13.8km (8.6 miles) ⓘWhite Cloud pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
14.0km (8.7 miles) ⓘUnknown Quartz - Feldspar - Mica Occurrence (MRDS - 10016599), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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