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Epidote & Piemontite

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PCZ629045

Epidote & Piemontite

Description Tabs

Description
Locality: 
Tshipise, Vhembe District, Limpopo Province, South Africa
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4.5 × 3 cm
Description

A polished, free form pebble of the material sometimes referred to as 'Dragon Stone'. The green areas are a combination of epidote and piemontite. An attractive specimen from Africa.

Mineral Data
What's on the rock

Epidote

Formula: 
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05a
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
Colorless
Type Locality: 
Bourg d'Oisans, Isère, Rhône-Alpes, France...

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
Peter Crozier Minerals