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Hydrotalcite

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MCH143992

Hydrotalcite

ex Dr. Harry von Eckermann Collection

Description Tabs

Description
Locality: 
Snarum, Modum, Viken, Norway
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 6 × 4 cm
Description

A very rich specimen of this rare mineral. A pearly-white lustrous mass of hydrotalcite is covering yellowish-green lizardite. From the classic locality for hydrotalcite.

Mineral Data
What's on the rock

Hydrotalcite

Formula: 
Mg6Al2(OH)16[CO3]·4H2O
Strunz: 
5.DA.50
Crystal System: 
Trigonal
Hardness: 
2.0
Streak: 
White
Type Locality: 
Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway

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