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Ferriallanite-(La)

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ESM837492

Ferriallanite-(La)

Description Tabs

Description
Locality: 
In den Dellen Quarries, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.3 × 0.5 × 0.4 cm
Description

Black ferriallanite crystals on matrix  ( For original close-up photo contact us )

Mineral Data
What's on the rock

Ferriallanite-(La)

Formula: 
{CaLa}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05b
Hardness: 
6.0 - 0.0
Colour: 
Black
Streak: 
Brown
Type Locality: 
In den Dellen quarries, Niedermendig, Mendig, Laach lake volcanic complex, Eifel, Rhineland-Palatinate, Germany