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Annite

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SKI899801

Annite

Description Tabs

Description
Locality: 
Tvedalen, Larvik, Vestfold og Telemark, Norway
Class: 
Single Crystal
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5.5 × 0.6 cm
Weight: 
64.00gr
Description

A larger, brown crystal of annite showing a green hue. Some scratches on the back.

Ex collection Dr. Siegmar Tyroff, Frankfurt, Germany (pre 1968).

Mineral Data
What's on the rock

Annite

Formula: 
KFe2+3(AlSi3O10)(OH)2
Strunz: 
9.EC.20
Crystal System: 
Monoclinic
Hardness: 
3.0
Colour: 
Black
Type Locality: 
Rockport, Essex Co., Massachusetts, USA

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