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
Fosby 2 (Vetekollen), Berg, Halden, Østfold, 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 Fosby 2 (Vetekollen), Berg, Halden, Østfold, Norway
Data Identifiers
Mindat Occurrence Record ID:1377873
Long-form Identifier:1:3:1377873:0
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.2km (0.1 miles) ⓘAlsrød, Berg, Halden, Østfold, Norway
0.7km (0.5 miles) ⓘVestgård, Berg, Halden, Østfold, Norway
2.2km (1.4 miles) ⓘFosby Feldspar Quarry, Berg, Halden, Østfold, Norway
3.2km (2.0 miles) ⓘLundestad, Berg, Halden, Østfold, Norway
6.5km (4.1 miles) ⓘLindemørk, Halden, Østfold, Norway
8.6km (5.3 miles) ⓘThe monolith quarry, Idd, Halden, Østfold, Norway
13.1km (8.2 miles) ⓘHerrebøkasa, Aspedammen, Idd, Halden, Østfold, Norway
15.1km (9.4 miles) ⓘBakke Quarry, Idd, Halden, Østfold, Norway
18.5km (11.5 miles) ⓘVestgård Feldspar Quarry, Skjeberg, Sarpsborg, Østfold, Norway
19.7km (12.3 miles) ⓘØby 2 Feldspar Quarry, Skjeberg, Sarpsborg, Østfold, Norway
References
Sørlie, Thor (1978) Gruve- og skjerpviksomhet i Halden kommune, 1.ærespris Halden Sparebanks Særoppgavekonkurranse 1978. 1-28
 
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