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
Gåsfjorden Copper Prospect, Sortland, Nordland, Norway


Locality type:Prospect
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 Gåsfjorden Copper Prospect, Sortland, Nordland, Norway
Data Identifiers
Mindat Occurrence Record ID:1465534
Long-form Identifier:1:3:1465534:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
10.2km (6.3 miles) ⓘGrønjorda Copper Prospect, Sortland, Nordland, Norway
13.9km (8.6 miles) ⓘSørvågmælen Sulphide Prospect, Øksnes, Nordland, Norway
15.1km (9.4 miles) ⓘSkoltneset Copper Prospect, Øksnes, Nordland, Norway
15.7km (9.7 miles) ⓘSmines, Øksnes, Nordland, Norway
16.6km (10.3 miles) ⓘSvinøy, Øksnes, Nordland, Norway
16.9km (10.5 miles) ⓘSkogsøy, Vesterålen archipelago, Nordland, Norway
20.0km (12.4 miles) ⓘHjellsand Iron Prospects, Øksnes, Nordland, Norway
25.3km (15.7 miles) ⓘMøkland, Bø, Nordland, Norway
29.2km (18.1 miles) ⓘSelvåg Iron-titanium-vanadium Deposit, Bø, Nordland, Norway
31.2km (19.4 miles) ⓘGustad Iron-titanium Deposit, Bø, Nordland, Norway
References
aps.ngu.no (n.d.) https://aps.ngu.no/pls/oradb/minres_deposit_fakta_NY_KS.Main?p_objid=2155&p_spraak=E
 
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