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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Muscovite from
Bjortjønn (Bjortjenn), Hynnekleiv, Froland, Agder, Norway


Locality type:Quarry
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Bjortjønn (Bjortjenn), Hynnekleiv, Froland, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:821071
Long-form Identifier:1:3:821071:5
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.7km (0.5 miles) ⓘTjørnene (Kleivmyr 11), Kleivmyr, Froland, Agder, Norway
1.0km (0.6 miles) ⓘØygarden (Kleivmyr 12), Kleivmyr, Froland, Agder, Norway
1.7km (1.1 miles) ⓘKleivmyr 07c feldspar quarry, Kleivmyr, Froland, Agder, Norway
1.8km (1.1 miles) ⓘKleivmyr, Froland, Agder, Norway
1.9km (1.2 miles) ⓘDyblemyr 1, Gunnerslått, Froland, Agder, Norway
2.4km (1.5 miles) ⓘRustfjellet South, Gunnerslått, Froland, Agder, Norway
2.5km (1.6 miles) ⓘMassævatnet 1, Hinnebu, Mykland, Froland, Agder, Norway
2.5km (1.6 miles) ⓘRustfjellet, Gunnerslått, Froland, Agder, Norway
4.5km (2.8 miles) ⓘNordre Bjellåsen (Bjellåsen 5), Bjellåsen, Froland, Agder, Norway
4.9km (3.0 miles) ⓘBjellåsen, Froland, Agder, Norway
References
Jørgensen, P.; Rosenqvist, I.T. (1963) Replacement and bonding conditions for alkali ions and hydrogen in dioctahedral and trioctahedral micas. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 43 (4). 497-536 sample of muscovite from Bjortjenn used in the study
Müller, Axel, Kearsley, A., Spratt, J., Seltmann, R. (2012) Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. The Canadian Mineralogist, 50 (4) 1095-1115 doi:10.3749/canmin.50.4.1095
 
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