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Almandine & Cordierite

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TPX868761

Almandine & Cordierite

Classic Locality

Description Tabs

Description
Locality: 
El Hoyazo, Níjar, Almería, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
2.2 × 2.2 × 11.7 cm
Weight: 
9.00gr
Description

Very interesting sample of trapezohedral garnets up accrued on crater bottom as result of almandine-rich dacite weathering. The matrix of this piece consist in fibrous masses of Sillimanite with blue Cordierite and black laminar Biotite.

Mineral Data
What's on the rock

Almandine

Formula: 
Fe2+3Al2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
7.0 - 7.5
Streak: 
White
Type Locality: 
Alabanda, Aydin Province, Aegean Region, Turkey

Cordierite

Formula: 
(Mg,Fe)2Al3(AlSi5O18)
Strunz: 
9.CJ.10
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 7.5
Type Locality: 
Großer Arber, Bayerisch Eisenstein, Lower Bavaria, Bavaria, Germany

Seller Information

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