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Wöhlerite

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MCH874827

Wöhlerite

Classic Locality

Description Tabs

Description
Locality: 
Låven Island, Langesundsfjorden, Larvik, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.9 × 2.2 cm
Description

An excellent old time specimen of Wöhlerite from the island of Låven ( = Lamö) in the classic Langesundsfjord pegmatite region of Southern Norway (Brewig or Brevig).

The specimen consists basically of light grey feldspar with dark amphibole and has a 4 cm zone with numerous up to 0.7 cm intense yellow coloured wöhlerite crystals that are partly transparent.

Old A. Krantz label.

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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