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Piemontite

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SHS682745

Piemontite

Description Tabs

Description
Locality: 
Maurino Quarry, Pizzo Alzasca, Linescio, Vallemaggia, Ticino, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2 × 1.6 cm
Description

Nice piemontite crystals on matrix

Mineral Data
What's on the rock

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