Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Biotite from
Mica Creek Deposit (Mica Mine), Gallatin Range, Gallatin County, Montana, USA


Locality type:Deposit
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 Mica Creek Deposit (Mica Mine), Gallatin Range, Gallatin County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:499414
Long-form Identifier:1:3:499414:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
18.9km (11.8 miles) ⓘElk Creek corundum deposit (Montana Mine; Gallatin deposit; Flying D), Gallatin County, Montana, USA
19.5km (12.1 miles) ⓘGallatin Corundum deposit, Gallatin Gateway, Gallatin County, Montana, USA
19.8km (12.3 miles) ⓘAlbitite, West Gallatin Mining District, Gallatin County, Montana, USA
21.5km (13.3 miles) ⓘBozeman Corundum Mine, Gallatin Gateway, Gallatin County, Montana, USA
30.6km (19.0 miles) ⓘBeartrap corundum deposit, Madison County, Montana, USA
62.9km (39.1 miles) ⓘCrevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse Mining District (Crevice Mining District; Jardine Mining District), Park County, Montana, USA
63.3km (39.3 miles) ⓘSkunk Creek outcrops, Madison County, Montana, USA
68.7km (42.7 miles) ⓘGilliam prospect, Madison County, Montana, USA
84.4km (52.5 miles) ⓘGolden Sunlight Mine, Whitehall Mining District (Cardwell Mining District), Jefferson County, Montana, USA
85.4km (53.1 miles) ⓘIron Mountain, Sweet Grass County, Montana, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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