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Wöhlerite

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PDM812014

Wöhlerite

Rare Mineral

Description Tabs

Description
Locality: 
Langesundsfjorden, Larvik, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 4.1 × 2.1 cm
Description

Yellow coloured crystals of the rare mineral wöhlerite are imbedded in a matrix of grey nepheline and black phyllosilicates.

Collected by J.Sibtsen in 1975-77. Ex Jan Sibtsen #1727.

Mineral Data
What's on the rock

Wöhlerite

Formula: 
NaCa2(Zr,Nb)(Si2O7)(O,OH,F)2
Strunz: 
9.BE.17
Hardness: 
5.5 - 6.0
Type Locality: 
Løvøya (Løvø; Lövö; Lövöe), Langesundsfjorden, Porsgrunn, Telemark, Norway

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