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Corundum

#DH34718

Corundum

#DH34718
Availability
Sold
Size
4 x 6 x 4 cm - Sm Cabinet 
Formula
Al2O3 (RRUFF)
Locality
Bozeman, Gallatin Co., Montana, United States

Blue-gray hexagonal crystals of Corundum variety Sapphire, the largest of which is 1.5cm, embedded throughout matrix.

From the our recently acquired collection of David Hess, a long time Western Illinois University professor of geology.

Corundum

Formula
Al2O3 
Crystal System
Trigonal 
Crystal Habit
Euhedral Crystals, Tabular, Prismatic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
blue, red, yellow, brown, gray 
Streak
none 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Tough 
Hardness

Data courtesy of Webmineral.

Collection
Hess Collection
Mineralpedia
View Corundum
On Dakota Matrix
Previously Sold Corundum
On Dakota Matrix
Other Available Corundum
WebMineral
View Corundum
Mindat
View Corundum

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