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Biotite from
Brown Derby No. 1, Brown Derby Mine, Quartz Creek Pegmatite Mining District, Gunnison 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 Brown Derby No. 1, Brown Derby Mine, Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:680176
Long-form Identifier:1:3:680176:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.1km (0.1 miles) ⓘBrown Derby Mine, Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA
4.4km (2.7 miles) ⓘBlack Wonder Occurrence, Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA
4.5km (2.8 miles) ⓘBucky pegmatite (New Anniversary; Willow Creek), Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA
10.0km (6.2 miles) ⓘDutch Flat Gulch, Gold Brick Mining District, Gunnison County, Colorado, USA
11.3km (7.0 miles) ⓘBoulder Creek, Gold Brick Mining District, Gunnison County, Colorado, USA
20.2km (12.6 miles) ⓘBon Ton Mine, Monarch Mining District, Chaffee County, Colorado, USA
22.5km (14.0 miles) ⓘGreen Mountain Mining District (Gold Basin Mining District; Iris Mining District), Gunnison County, Colorado, USA
23.2km (14.4 miles) ⓘLucky Strike Mine (Modoc; MS 17455; Horse Shoe; MS 17122; Belle Valaisane; MS 13897; Only Chance; MS 17455; Mammoth; MS 13897; Patented Claims: Lucky Strike; MS 9125), Green Mountain Mining District (Gold Basin Mining District; Iris Mining District), Gunnison County, Colorado, USA
25.8km (16.0 miles) ⓘGold Basin District Occurrence (MS 1984; Patented Claim: Belle Flora), Green Mountain Mining District (Gold Basin Mining District; Iris Mining District), Gunnison County, Colorado, USA
25.9km (16.1 miles) ⓘGunnison District Occurrence (W.C. Dillon; MS 10715), Gunnison Mining District, Gunnison County, Colorado, USA
References
King, Van (n.d.) Personal communcation.
USGS Proffesional Paper 265
 
and/or  
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