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
Malmberget, Gällivare, Norrbotten County, Sweden


Locality type:Town
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
Associated Minerals Based on Photo Data:
Calcite3
Harmotome3
Fluorapatite2
Chalcopyrite2
Stilbite Subgroup2
Magnetite1
Microcline1
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Malmberget, Gällivare, Norrbotten County, Sweden
Data Identifiers
Mindat Occurrence Record ID:694138
Long-form Identifier:1:3:694138:3
GUID (UUID V4):0
Localities for Biotite in this Region
Kung Oskar mine, Malmberget, Gällivare, Norrbotten County, Sweden
Nearest other occurrences of Biotite
1.5km (0.9 miles) ⓘKung Oskar mine, Malmberget, Gällivare, Norrbotten County, Sweden
9.7km (6.0 miles) ⓘNautanen North deposit, Nautanen, Gällivare, Norrbotten County, Sweden
10.0km (6.2 miles) ⓘNautanen Mine, Nautanen, Gällivare, Norrbotten County, Sweden
17.3km (10.7 miles) ⓘAitik Mine, Gällivare, Norrbotten County, Sweden
19.5km (12.1 miles) ⓘSalmijärvi, Gällivare, Norrbotten County, Sweden
19.8km (12.3 miles) ⓘLiikavaara East, Gällivare, Norrbotten County, Sweden
39.2km (24.4 miles) ⓘNunasvaara, Vittangi, Kiruna, Norrbotten County, Sweden
51.3km (31.9 miles) ⓘPainirova, Kiruna, Norrbotten County, Sweden
53.2km (33.1 miles) ⓘLeveäniemi Mine, Svappavaara, Kiruna, Norrbotten County, Sweden
60.2km (37.4 miles) ⓘPattok, Gällivare, Norrbotten County, Sweden
References
Romer, Rolf L. (1996) U-Pb systematics of stilbite-bearing low-temperature mineral assemblages from the Malmberget iron ore, northern Sweden. Geochimica et Cosmochimica Acta, 60 (11). 1951-1961 doi:10.1016/0016-7037(96)00066-x
Lyckberg, Peter (2006) The Malmberget iron mine, Sweden- A world class mineral locality. Norsk Bergverksmuseum Skrift, 33. 75-87
 
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