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
Mount Milligan mine (Mount Milligan Cu-Au deposit), Omineca Mining Division, British Columbia, Canada


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 Mount Milligan mine (Mount Milligan Cu-Au deposit), Omineca Mining Division, British Columbia, Canada
Data Identifiers
Mindat Occurrence Record ID:623648
Long-form Identifier:1:3:623648:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
63.6km (39.5 miles) ⓘSnowbird mine, Omineca Mining Division, British Columbia, Canada
65.6km (40.8 miles) ⓘLonnie carbonatite, Mansoon Lakes, Omineca Mining Division, British Columbia, Canada
69.8km (43.4 miles) ⓘVergil carbonatite, Mansoon Lakes, Omineca Mining Division, British Columbia, Canada
90.7km (56.3 miles) ⓘKwanika prospect (Swan prospect), Kwanika Creek, Omineca Mining Division, British Columbia, Canada
References
Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155
 
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