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