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Stillwellite-(Ce) from
Barkevikskjær, Barkevik area, Langesundsfjorden, Larvik, Vestfold, Norway

Locality type:Island
Classification
Species:Stillwellite-(Ce)
Formula:(Ce,La,Ca)BSiO5
Comments:One specimen in the collections of the Mineralogisk-Geologisk Museum, Oslo, bought from Ad.Johannnesen in 1906.
Habit:elongated prisms with a trigonal appearance
Colour:brownish yellow
Abundance at site:Extremely Rare
Confirmation
Validity:Believed Valid
References
References:Neumann, H.; Bergstøl, S. & Nilssen, B.(1966)." Stillwellite in the Langesundfjord nepheline syenite pegmatite dykes ". Norsk Geologisk Tidsskrift 46: 327-334
Data
Mineral Data:Click here to view Stillwellite-(Ce) data
Locality Data:Click here to view Barkevikskjær, Barkevik area, Langesundsfjorden, Larvik, Vestfold, Norway
 
Mineral and/or Locality  
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