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
Ørnhammeren, Oppdal, Trøndelag, Norway


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 Ørnhammeren, Oppdal, Trøndelag, Norway
Data Identifiers
Mindat Occurrence Record ID:1309178
Long-form Identifier:1:3:1309178:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.8km (1.7 miles) ⓘSliper, Oppdal, Trøndelag, Norway
33.6km (20.9 miles) ⓘKolla, Oppdal, Trøndelag, Norway
40.0km (24.9 miles) ⓘTodalshaug, Surnadal, Møre og Romsdal, Norway
55.2km (34.3 miles) ⓘOlkar Mine, Kvikne, Tynset, Innlandet, Norway
56.3km (35.0 miles) ⓘKaltberget Mine, Kvikne, Tynset, Innlandet, Norway
56.8km (35.3 miles) ⓘSøndre Geitryggen Mines, Folldal Mines, Folldal, Innlandet, Norway
58.0km (36.0 miles) ⓘSøndre Berstjern Prospect, Kvikne Mines, Tynset, Innlandet, Norway
58.0km (36.0 miles) ⓘMidtre Berstjern Prospect, Kvikne Mines, Tynset, Innlandet, Norway
58.2km (36.2 miles) ⓘEstenvangen 1 Mine, Kvikne Mines, Tynset, Innlandet, Norway
58.2km (36.2 miles) ⓘOdden Prospect, Kvikne Mines, Tynset, Innlandet, Norway
References
Geological Survey of Norway. The Ore Database. Deposit Area 1634 - 023. Tilset.
 
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