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
Storforshei, Rana, Nordland, Norway


Locality type:Village
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 Storforshei, Rana, Nordland, Norway
Data Identifiers
Mindat Occurrence Record ID:1670361
Long-form Identifier:1:3:1670361:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.8km (0.5 miles) ⓘØrtvann Mine, Rana Mines, Dunderland Valley, Rana, Nordland, Norway
5.1km (3.2 miles) ⓘFinnkåteng Mine, Rana Mines, Dunderland Valley, Rana, Nordland, Norway
6.6km (4.1 miles) ⓘØrtfjell Mine, Rana Mines, Dunderland Valley, Rana, Nordland, Norway
9.6km (6.0 miles) ⓘØrtfjell East Mine, Rana Mines, Dunderland Valley, Rana, Nordland, Norway
19.0km (11.8 miles) ⓘSvabo Mine, Mofjellet, Rana, Nordland, Norway
20.2km (12.5 miles) ⓘDahl prospect, Mofjellet, Rana, Nordland, Norway
20.2km (12.5 miles) ⓘMofjellet Base Metal Mine, Mofjellet, Rana, Nordland, Norway
26.1km (16.2 miles) ⓘAltermark talc mine, Altermark area, Rana, Nordland, Norway
29.3km (18.2 miles) ⓘBordvedåga, Høgtuva, Rana, Nordland, Norway
39.3km (24.4 miles) ⓘNasafjäll Mine, Arjeplog, Norrbotten County, Sweden
References
Larsen, Knut Edvard (2024) Noen funn av mineraler i Norge 2023-2024 [Some mineral discoveries in Norway 2023-2024]. STEIN. Magasin for populærgeologi, 51 (4). 3-9
 
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