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Chiavennite

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MCH691157

Chiavennite

Description Tabs

Description
Locality: 
Almenningen Quarry, Tvedalen, Larvik, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4.7 × 4.3 cm
Description

On grey microcline numerous yellowish spheres of chiavennite are set covering a zone of 2.5 x 1 cm. The small silvery spots are molybdenite. Specimen from a quarry in the Larvikite/Langesundsfjord Area of Southern Norway.

Mineral Data
What's on the rock

Chiavennite

Formula: 
CaMnBe2Si5O13(OH)2·2H2O
Strunz: 
9.GF.25
Hardness: 
3.0
Type Locality: 
Tanno, Chiavenna, Valchiavenna, Sondrio Province, Lombardy, Italy

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