Allochromatic gems are gems which might be colored by impurities. If they have been fully pure, they would be colorless. The color of all allochromatic gems is made by defects. Consequently, all shade in corundum is attributable to defects. Developing a beautiful shape of Pukhraj is a vital method that https://cruxbookmarks.com/story18125295/rumored-buzz-on-sri-lanka-yellow-sapphire