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Armalcolite Enstatite & Tridymite

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TPX520356

Armalcolite Enstatite & Tridymite

Rare Mineral

Description Tabs

Description
Locality: 
La Aljorra Quarries, La Aljorra, Cartagena, Murcia, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.9 × 3.8 × 2.5 cm
Weight: 
24.00gr
Description

Spectacular sample of these rare minerals in a lamproite matrix, armalcolite, enstatite, trydimite, fluorophogopite, sanidine, peridot, etc.

This piece is a delight for the microminerals lovers.

Mineral Data
What's on the rock

Armalcolite

Formula: 
(Mg,Fe2+)Ti2O5
Strunz: 
4.CB.15
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 0.0
Colour: 
Grey
Type Locality: 
Tranquillity Base (Apollo 11 landing site), Mare Tranquillitatis (Sea of Tranquility), The Moon

Enstatite

Formula: 
MgSiO3
Group Parent: 
Orthopyroxene Subgroup
Strunz: 
9.DA.05
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
5.0 - 6.0

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

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