Corundum Photos 
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor     copyright 2010-R.Weller 

corundum-rubies and sapphires
Rubies are red corundum.  All other colors of corundum are classified as sapphires. 
These water-worn crystals of rubies and sapphires are each less than one
centimeter in diameter.


corundum                                                                                                                                        1
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.