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Wöhlerite

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MCH893116

Wöhlerite

ex Dr. Harry von Eckermann Collection

Description Tabs

Description
Locality: 
Langesundsfjorden, Porsgrunn, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.4 × 2.5 cm
Weight: 
75.00gr
Description

An 0.4 cm transparent and extraordinary well crystallized wöhlerite crystal showing top and many prism faces (hard to find in such quality!), is embedded in pegmatite rock consisting of feldspar, black amphibole, magnetite, some black mica and several up to 1 cm wöhlerite crystals.

The specimen is from the collection of the famous Swedish mineralogist Harry von Eckermann († 1969, the mineral Eckermannite is named after him) and is followed by an original label bonded in a cardboard box.

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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