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Gedrite

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MCH573369

Gedrite

ex Dr. Harry von Eckermann Collection

Description Tabs

Description
Locality: 
Bamble, Vestfold og Telemark, Norway
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4.9 × 2.3 cm
Description

Dark grey to olive green coloured cleavage material of gedrite. 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

Gedrite

Formula: 
☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Strunz: 
9.DD.05
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Gèdres, Héas valley, Luz-Saint-Sauveur, Hautes-Pyrénées, Midi-Pyrénées, France

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