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Andradite Var Melanite

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PDM815820

Andradite Var Melanite

Classic Locality

Description Tabs

Description
Locality: 
Haraldseng, Sørøya, Hasvik, Troms og Finnmark, Norway
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.7 × 1.8 cm
Largest Crystal: 
0.70cm
Description

Lustrous euhedral crystals of andradite, variety melanite, in a matrix rich in calcite and magnetite.

Acquired by J.Sibtsen in 1977. Ex Jan Sibtsen #1257.

Mineral Data
What's on the rock

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

Melanite

Variety Of: 

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Hardness: 
0.0
Colour: 
Black

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