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Helvine from
Rønningen E 18 roadcuts, Porsgrunn, Telemark, Norway


02941770017369972886183.jpg
Helvine

Rønningen E 18 roadcuts, Porsgrunn, Telemark, Norway
02941770017369972886183.jpg
Helvine

Rønningen E 18 roadcuts, Porsgrunn, Telemark, Norway
07893710017272063432334.jpg
Helvine

Rønningen E 18 roadcuts, Porsgrunn, Telemark, Norway
Locality type:Road Cutting
Classification
Species:Helvine
Formula:Be3Mn42+(SiO4)3S
Comments:in cavities lined with analcime
Habit:tetrahedra up to 5 mm
Colour:medium brown
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Bertrandite1
Analcime1
Data
Mineral Data:Click here to view Helvine data
Locality Data:Click here to view Rønningen E 18 roadcuts, Porsgrunn, Telemark, Norway
Data Identifiers
Mindat Occurrence Record ID:171087
Long-form Identifier:1:3:171087:8
GUID (UUID V4):0
Nearest other occurrences of Helvine
1.0km (0.6 miles) ⓘE18 roadcuts, Slevolden, Porsgrunn, Telemark, Norway
2.3km (1.4 miles) ⓘKjølsrød, Bjørkedalen, Porsgrunn, Telemark, Norway
2.9km (1.8 miles) ⓘKokkersvold, Kokkersvold - Blåfjell E18 roadcuts, Langangen, Porsgrunn, Telemark, Norway
4.0km (2.5 miles) ⓘChiavennite dike, Blåfjell (E18 roadcuts), Kokkersvold - Blåfjell E18 roadcuts, Langangen, Porsgrunn, Telemark, Norway
5.4km (3.4 miles) ⓘRamsåskollen, Skien, Telemark, Norway
6.7km (4.2 miles) ⓘBuer, Bjørkedalen, Porsgrunn, Telemark, Norway
8.3km (5.1 miles) ⓘEikevegåsen Quarry, Bassebu, Porsgrunn, Telemark, Norway
8.9km (5.5 miles) ⓘFerry Quay, Bjørkøya, Porsgrunn, Telemark, Norway
9.3km (5.8 miles) ⓘSagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
9.4km (5.8 miles) ⓘSaga 1 Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
References
Larsen, Alf Olav (1988) Helvite group minerals from syenite pegmatites in the Oslo Region, Norway. Contribution to the mineralogy of Norway, No. 68. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 68 (2) 119-124
Burvald, Ingulv (1993) To forekomster av nefelin-syenitt-pegmatitt i Telemark, in Telemark II. STEIN. Nordisk magasin for populær geologi, 20 (3) 176-179
 
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