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Corundum

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ESM682356

Corundum

Description Tabs

Description
Locality: 
Wingertsberg, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.8 × 3 × 1.2 cm
Description

Blue corundum crystals on matrix

Mineral Data
What's on the rock

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
9.0
Streak: 
White