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Grossular & Epidote

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TPX849740

Grossular & Epidote

Classic Locality

Description Tabs

Description
Locality: 
Sierra Norte de Córdoba, San Francisco del Chañar, Sobremonte Department, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.7 × 6.4 × 5.4 cm
Weight: 
349.00gr
Description

Very interesting group of grossular crystals on matrix with minor quartz. One characteristic is that some faces of the garnet crystals show a superficial crystallization of green epidote. This is a small, little-known site of which no specimens are usually found on the market.

Mineral Data
What's on the rock

Grossular

Formula: 
Ca3Al2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Type Locality: 
Akhtaragda River mouth (Achtaragda River mouth), Vilyui River Basin (Vilui River Basin; Wilui River Basin), Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

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...

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