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Quartz With Magnesio-riebeckite

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FNW94170

Quartz With Magnesio-riebeckite

Description Tabs

Description
Locality: 
La Juanona Quarry, Antequera, Málaga, Andalusia, Spain
Size Range: 
Museum (18cm plus)
Size: 
12.5 × 18 × 4 cm
Description

Large and very heavy specimen with many uncommon blue quartz crystals.

The colour is due to magnesioriebeckite inclusions.

Mineral Data
What's on the rock

Quartz

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

Magnesio-riebeckite

Formula: 
◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Strunz: 
9.DE.25
Hardness: 
5.0 - 5.5
Type Locality: 
Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia
Fine Minerals World