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Corundum

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ASA621094

Corundum

Description Tabs

Description
Locality: 
Graphite Quarry, Amstall, Krems-Land District, Lower Austria, Austria
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.3 × 3.7 × 2.6 cm
Largest Crystal: 
2.70cm
Description

Large corundum crystal for that location on graphite. Self collected in 1978. In nowerdays this size is impossible to find any longer. The pit is recultivated. The corundum is colored by vanadium therefor it is no ruby. In my mind this circumstance makes it more interesting than the color made by chromium. A very fine piece you will not get any longer on the market.

Mineral Data
What's on the rock

Corundum

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

Seller Information

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