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Grossular

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PDM837384

Grossular

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Description
Locality: 
Sierra de Cruces, Sierra Mojada Municipality, Coahuila, Mexico
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.4 × 1.9 cm
Description

Lustrous grossular crystals with pink external colour and black cores, on a white quartz matrix.

Ex Georges Vanacker Vanacker* specimen.

*Vanackerite from Tsumeb was named after him.

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

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