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Biotite from
Helleknuten Prospect, Forsand, Rogaland, Norway


Locality type:Prospect
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Helleknuten Prospect, Forsand, Rogaland, Norway
Data Identifiers
Mindat Occurrence Record ID:947177
Long-form Identifier:1:3:947177:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.9km (1.2 miles) ⓘRossevika, Forsand, Rogaland, Norway
7.7km (4.8 miles) ⓘLastebotn, Forsand, Rogaland, Norway
11.2km (7.0 miles) ⓘVeraland quarry, Sandnes, Rogaland, Norway
20.3km (12.6 miles) ⓘFaurefjell, Bjerkreim, Rogaland, Norway
24.9km (15.5 miles) ⓘRoadcut Fv 503 Vikesdal, Vikeså, Bjerkreim, Rogaland, Norway
26.7km (16.6 miles) ⓘØrsdalen Mines, Bjerkreim, Rogaland, Norway
27.3km (17.0 miles) ⓘHovland Molybdenum Prospects, Ørsdalen Mines, Bjerkreim, Rogaland, Norway
27.8km (17.3 miles) ⓘOsumilite-bearing granulite, Vikeså, Bjerkreim, Rogaland, Norway
28.7km (17.8 miles) ⓘØykjalifjellet Iron Prospects, Bjerkreim, Rogaland, Norway
29.4km (18.3 miles) ⓘØykjalifjellet Pegmatite Locality, Bjerkreim, Rogaland, Norway
References
Geological Survey of Norway. The Ore Database. Deposit Area 1129 - 005. Helleknuten
 
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