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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Tourmaline from
Byrud Emerald Mines, Minnesund, Eidsvoll, Akershus, Norway


Locality type:Mine
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Comments:A XRD of a green mineral showed "tourmaline". Analysis done at NHM, Oslo (L.O.Kvamsdal info 16.03.2016).
Colour:Green
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Byrud Emerald Mines, Minnesund, Eidsvoll, Akershus, Norway
Data Identifiers
Mindat Occurrence Record ID:695468
Long-form Identifier:1:3:695468:0
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
80.5km (50.0 miles) ⓘSpro pegmatite, Nesodden, Akershus, Norway
81.8km (50.8 miles) ⓘVardåsen Tunnel, Asker, Akershus, Norway
83.1km (51.6 miles) ⓘØvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
85.5km (53.1 miles) ⓘØksne Quarry, Lier, Buskerud, Norway
89.1km (55.4 miles) ⓘSkuterud Mines, Modum West, Modum, Buskerud, Norway
91.7km (57.0 miles) ⓘØvre Lahell Quarry, Lier, Buskerud, Norway
93.8km (58.3 miles) ⓘSætersbergåsen, Modum, Buskerud, Norway
96.1km (59.7 miles) ⓘE 134 Road, Drammen, Buskerud, Norway
97.5km (60.6 miles) ⓘSolbergmoen, Åssiden, Drammen, Buskerud, Norway
97.8km (60.8 miles) ⓘBatteriet, Åssiden, Drammen, Buskerud, Norway
References
Kvamsdal, Lars O., Eldjarn, Knut (2006) Mineralene i smaragdgruvene ved Byrud gård, Minnesund, Norge. STEIN. Nordisk magasin for populær geologi, 33 (4) 4-20
Nordrum, Fred Steinar, Raade, Gunnar (2006) The Emerald deposit at Byrud, Eidsvoll, South Norway. Norsk Bergverksmuseum Skrift, 33. 9-16
 
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