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Tridymite & Fluorophlogopite

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CR965708

Tridymite & Fluorophlogopite

Description Tabs

Description
Locality: 
La Aljorra Quarries, La Aljorra, Cartagena, Murcia, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3 × 1.5 cm
Description

Rich specimen of white traslucent hexagonal crystals of trydimite, gemmy brown fluorophlogpite and gemmy clear enstatite crystals in several vugs of the matrix.

 

Mineral Data
What's on the rock

Tridymite

Formula: 
SiO2
Strunz: 
4.DA.10
Crystal System: 
Triclinic - Pedial
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Cerro San Cristóbal, Mun. de Pachuca, Hidalgo, Mexico

Fluorophlogopite

Formula: 
KMg3(AlSi3O10)(F,OH)2
Strunz: 
9.EC.20
Hardness: 
2.0 - 3.0
Type Locality: 
Mt Calvario, Biancavilla, Etna Volcanic Complex, Catania Province, Sicily, Italy