Corundum Photos 
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor     copyright 2010-R.Weller 

sapphire crystal-2
The typical shape for a corundum crystal is a hexagonal prism
with a flat top (basal pinacoid).

corundum                                                                                                                                      018b
Photo is copyright free only for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.

Specimen from the Cochise College collection