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Wöhlerite

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MCH153885

Wöhlerite

Description Tabs

Description
Locality: 
Svensken Quarry, Tuften, Tvedalen, Larvik, Vestfold og Telemark, Norway
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.1 × 7 × 3.4 cm
Description

A specimen very rich in yellow coloured wöhlerite, the rare sodium-calcium-zirconium-niobium-silicate. The crystals are partially up to 1 cm thick and are ingrown in a matrix of nepheline, amphibole and feldspar - typical for the pegmatites in the Langesundsfjord area.

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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