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Tourmaline from
Bakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway

Locality type:Pegmatite
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:A(D3)G6(Si6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
References
References:Sunde, Ø., Selbekk, R.S., Friis, H. & Andersen, T. (2013): Bakstevalåsen, en unik Be-Sn-B pegmatitt. Norsk Bergverksmuseum Skrift 50, 43-48
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Bakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway
Nearest other occurrences of Tourmaline
13.6km (8.4 miles) Nikkerud Mines, Nedre Eiker, Buskerud, Norway
14.3km (8.9 miles) Ryggkollen, Nedre Eiker, Buskerud, Norway
14.3km (8.9 miles) Batteriet, Nedre Eiker Church, Nedre Eiker, Buskerud, Norway
14.7km (9.1 miles) Solbergmoen, Nedre Eiker, Buskerud, Norway
25.2km (15.7 miles) Sætersberg (Sätersberg), Modum, Buskerud, Norway
26.7km (16.6 miles) Øksne Quarry, Lier, Buskerud, Norway
26.8km (16.7 miles) Øvre Lahell Quarry, Lier, Buskerud, Norway
33.8km (21.0 miles) Vardåsen Tunnel, Asker, Akershus, Norway
36.2km (22.5 miles) Tinfoss Jernverks Quartz Quarry, Lake Heddal, Notodden, Telemark, Norway
42.6km (26.5 miles) Spro pegmatite, Nesodden, Akershus, Norway
 
Mineral and/or Locality  
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