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Andradite & Vesuvianite In Tremolite

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SHS41352

Andradite & Vesuvianite In Tremolite

ex. Collection F. Bauer (München/Germany)

Description Tabs

Description
Locality: 
Willsboro Mine, Willsboro, Essex County, New York, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.1 × 5.5 × 3.3 cm
Description

Andradite and vesuvianite in white tremolite, so called kolophonite

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

Vesuvianite

Formula: 
(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Strunz: 
9.BG.35
Hardness: 
6.5
Streak: 
White
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Tremolite

Formula: 
☐{Ca2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0
Streak: 
White
Type Locality: 
Campolungo, Piumogna Valley, Leventina, Ticino (Tessin), Switzerland