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


Locality type:Pegmatite
Classification
Species:Helvine
Formula:Be3Mn42+(SiO4)3S
Comments:Described as helvite in Hurunm et al. (1997). New analysis by Jahren et al. (1998) showed this to be genthelvite
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Helvine data
Locality Data:Click here to view Bakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway
Data Identifiers
Mindat Occurrence Record ID:477216
Long-form Identifier:1:3:477216:3
GUID (UUID V4):0
Nearest other occurrences of Helvine
6.9km (4.3 miles) ⓘRundemyr, Øvre Eiker, Buskerud, Norway
17.5km (10.9 miles) ⓘE 134 Road, Drammen, Buskerud, Norway
23.1km (14.3 miles) ⓘRien Mine, Rien, Sande, Holmestrand, Vestfold, Norway
24.2km (15.0 miles) ⓘGlomsrudkollen Zinc Mines, Åmot, Modum, Buskerud, Norway
30.3km (18.8 miles) ⓘKjenner Bismuth Mine, Lierskogen, Lier, Buskerud, Norway
44.5km (27.7 miles) ⓘIsi Prospect, Bærum (Baerum), Akershus, Norway
46.9km (29.1 miles) ⓘHimberg Quarry, Ramnes, Tønsberg, Vestfold, Norway
51.3km (31.9 miles) ⓘBreigangen Mine, Fossum Iron Mines, Skien, Telemark, Norway
56.4km (35.0 miles) ⓘBuer, Bjørkedalen, Porsgrunn, Telemark, Norway
57.7km (35.9 miles) ⓘRamsåskollen, Skien, Telemark, Norway
References
Hurum, Jørn H., Jahren, J., Berg, Hans-Jørgen, Bjerkgaard, T. (1997) En eksotisk pegmatitt i kambrosiluren ved Eikeren, Buskerud [An unusual pegmatite from the Eikeren area, South-eastern Norway - a preliminary report], in Kongsberg Mineralsymposium 1997. STEIN. Nordisk magasin for populær geologi, 24 (3) 125-127
Hurum, Jørn H., Jahren, J., Berg, Hans-Jørgen, Bjerkgård, T. (1997) En eksotisk pegmatitt i kambrosiluren ved Eikeren, Buskerud [An unusual pegmatite from the Eikeren area, South-eastern Norway - a preliminary report]. Norsk Bergverksmuseum Skrift, 12. 31-33
Jahren, J., Berg, Hans-Jørgen, Hurum, Jørn H., Wulff-Pedersen, E. (1998) Nye undersøkelser av amazonitt- genthelvin pegmatitten fra Fiskum, Øvre Eiker [New investigation on the amazonite-genthelvite pegmatite of Fiskum, Øvre Eiker]. Norsk Bergverksmuseum Skrift, 14. 13-16
 
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