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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Amphibolite from
Romsåsen Ni Mines, Kykkelsrud, Askim, Indre Østfold, Østfold, Norway


Locality type:Mine
Classification
Type:Amphibolite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Amphibolite data
Locality Data:Click here to view Romsåsen Ni Mines, Kykkelsrud, Askim, Indre Østfold, Østfold, Norway
Data Identifiers
Mindat Occurrence Record ID:1621156
Long-form Identifier:1:3:1621156:4
GUID (UUID V4):0
Nearest other occurrences of Amphibolite
9.4km (5.9 miles) ⓘGislingrud Quarries, Eidsberg, Indre Østfold, Østfold, Norway
13.7km (8.5 miles) ⓘSkofterud Quarry, Eidsberg, Indre Østfold, Østfold, Norway
38.5km (23.9 miles) ⓘStryker I Feldspar Quarry, Degernes, Rakkestad, Østfold, Norway
52.8km (32.8 miles) ⓘFosby 2 (Vetekollen), Berg, Halden, Østfold, Norway
53.2km (33.0 miles) ⓘSnørop, Berg, Halden, Østfold, Norway
53.4km (33.2 miles) ⓘVestgård, Berg, Halden, Østfold, Norway
75.9km (47.2 miles) ⓘHumlebekk Claim, Himsjø, Øvre Eiker, Buskerud, Norway
78.7km (48.9 miles) ⓘKoster Islands, Strömstad, Västra Götaland County, Sweden
79.9km (49.7 miles) ⓘErtelien Mine, Ertelien Mines, Holleia, Ringerike Ni Mines, Ringerike, Buskerud, Norway
80.5km (50.0 miles) ⓘStalsbergtjern, Kongsberg, Buskerud, Norway
References
Mansur, Eduardo T., Sandstad, Jan Sverre, Slagstad, Trond, Miranda, Ana Carolina R., Dare, Sarah A.S., Nilsson, Lars Petter (2023) Geology, sulphide geochemistry and geochronology of the Romsås Ni-Cu-Co mineralisation, Norway: Implications for ore formation and regional prospectivity. Lithos, 454. 107244 doi:10.1016/j.lithos.2023.107244
 
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