 
                 Surface of Glassfilled Ruby(cavity filled)
 
                 Surface of Pink Dyed Corundum
 
                 Pink Dyed Quartzite - surface under normal day light
 
                 Surface of Green Dyed Quartzite - under overhead flourescent lamp
 
                 Surface of Green Dyed Quartzite - overhead fiberoptic illumination
 
                 Green Dyed Quartzite - darkfield illumination
 
                 Honeycomb like pattern on Synthetic Cat's Eye(manmade)
 
                 Synthetic Cat's Eye(Manmade)
 
                 Hexagonal(angular)Zoning in Trapiche like pattern in Natural Sapphire
 
                 Natural Sapphire with trapiche like pattern
 
                 Beryllium Diffused Natural Yellow Sapphire
Melted crystal at very high temperature
 
                 Beryllium Diffused Natural Yellow Sapphire
Melted crystal at very high temperature
 
                 Beryllium Diffused Yellow Sapphire