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Epidote Andradite & Quartz

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PFK530531

Epidote Andradite & Quartz

Description Tabs

Description
Locality: 
Kimmeria, Xanthi, East Macedonia and Thrace, Greece
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 5 × 3.7 cm
Description

This specimen combines the the three main minerals this locality produces. Firstly there are the epidote crystals, then we have the quartz crystals that leap nicely out of the matrix and one of them has a nice epidote inclusion. Last but not least there are a few skeletal andraditea on it. The andradites are interesting because they are almost dissolved!

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...

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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