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Piemontite & Tremolite

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MCH636168

Piemontite & Tremolite

Description Tabs

Description
Locality: 
Dalen, Tokke, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.9 × 5.6 × 4.5 cm
Description

A vug within quartz is filled with numerous nice red coloured piemontite crystals as well as some fibrous aggregates of green tremolite crystals.

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

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

Seller Information

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