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Grossular & Quartz

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TPX853981

Grossular & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Sierra Norte de Córdoba, San Francisco del Chañar, Sobremonte Department, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 4.9 × 3 cm
Weight: 
129.00gr
Description

Group of garnet crystals of the grossular variety with a very dark green to black color accompanied by quartz crystals with a very complex formation.

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

Quartz

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

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