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Vesuvianite Var Cyprine & Piemontite

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CLB180102

Vesuvianite Var Cyprine & Piemontite

Classic Locality

Description Tabs

Description
Locality: 
Øvstebø, Kleppan, Hjartdal, Vestfold og Telemark, Norway
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.4 × 3.8 × 2 cm
Description

Very rare blue variety of vesuvianite. This cyprine specimen comes from one of only seven known localities. Very rare. There's also a little red piemontite in the matrix.

Mineral Data
What's on the rock

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

Cyprine

Variety Of: 

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
Hardness: 
0.0
Streak: 
White
Type Locality: 
Øvstebø, Kleppan, Sauland, Hjartdal, Telemark, Norway

Piemontite

Formula: 
{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05
Hardness: 
6.0 - 6.5
Streak: 
Reddish
Type Locality: 
Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy

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