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
Mofjord, Hadsel, Nordland, Norway


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 Mofjord, Hadsel, Nordland, Norway
Data Identifiers
Mindat Occurrence Record ID:1595141
Long-form Identifier:1:3:1595141:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
15.0km (9.3 miles) ⓘVatterfjord Molybdenum Mine, Austvågøy, Vågan, Nordland, Norway
27.9km (17.3 miles) ⓘVikpollen Iron Prospect, Lødingen, Nordland, Norway
37.5km (23.3 miles) ⓘGustad Iron-titanium Deposit, Bø, Nordland, Norway
38.1km (23.7 miles) ⓘVestpolltind Iron Deposits, Vestpolltind, Lødingen, Nordland, Norway
39.6km (24.6 miles) ⓘMøkland, Bø, Nordland, Norway
40.0km (24.9 miles) ⓘSelvåg Iron-titanium-vanadium Deposit, Bø, Nordland, Norway
42.2km (26.2 miles) ⓘGrønjorda Copper Prospect, Sortland, Nordland, Norway
42.7km (26.5 miles) ⓘSneisa Iron Prospect, Lødingen, Nordland, Norway
43.6km (27.1 miles) ⓘSkoltneset Copper Prospect, Øksnes, Nordland, Norway
47.5km (29.5 miles) ⓘGåsfjorden Copper Prospect, Sortland, Nordland, Norway
References
Engvik, Ane K., Gautneb, Håvard, Mørkved, Pål Tore, Solberg, Janja Knežević, Erambert, Muriel (2023) Proterozoic Deep Carbon—Characterisation, Origin and the Role of Fluids during High-Grade Metamorphism of Graphite (Lofoten–Vesterålen Complex, Norway) Minerals, 13 (10) doi:10.3390/min13101279
 
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