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Violan With Piemontite

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CLB64711

Violan With Piemontite

Type Locality

Description Tabs

Description
Locality: 
Praborna Mine, Saint-Marcel, Aosta Valley, Italy
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.2 × 2 cm
Description

Very nice specimen with good crystallization of violane and ruby-red micro-crystals of piemontite (type locality!). In nature the violane has a much more reddish purple hue.

Mineral Data
What's on the rock

Violan

Variety Of: 

Diopside

Formula: 
CaMgSi2O6
Strunz: 
9.DA.15
Hardness: 
5.5 - 6.5
Hardness: 
6.0 - 0.0
Type Locality: 
Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy

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

Seller Information

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