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Biotite from
Iowa Gulch Occurrence (Iowa Gulch Pegmatite), Jefferson County, Colorado, USA


Locality type:Occurrence
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 Iowa Gulch Occurrence (Iowa Gulch Pegmatite), Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:377520
Long-form Identifier:1:3:377520:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.4km (1.5 miles) ⓘBigger Mica Mine (Sweitzer Lode), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
5.6km (3.5 miles) ⓘTurkey Creek, Jefferson County, Colorado, USA
9.2km (5.7 miles) ⓘWright lease (Foothills Mine), Idledale Mining District, Jefferson County, Colorado, USA
12.2km (7.6 miles) ⓘF.M.D. Mine, Evergreen Mining District (Malachite Mining District), Jefferson County, Colorado, USA
12.4km (7.7 miles) ⓘSeven Hills - Yetter Ranch Pegmatite Occurrence, Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
14.0km (8.7 miles) ⓘBurroughs Mine (Traut-Rudin-Anderson Pegmatite; Sunrise Peak Mine), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
17.4km (10.8 miles) ⓘButterfield pegmatites, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
18.0km (11.2 miles) ⓘHosa Lodge Mine, Evergreen Mining District (Malachite Mining District), Jefferson County, Colorado, USA
19.6km (12.2 miles) ⓘOld Soda Creek School Pegmatite, Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
19.6km (12.2 miles) ⓘLittle Patsy pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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