Allochromatic gems are gems which have been coloured by impurities. If they had been completely pure, they might be colorless. The color of all allochromatic gems is produced by defects. Hence, all color in corundum is brought on by defects. After lighting an incense adhere before the gemstone the mantra https://bookmark-media.com/story18131402/not-known-facts-about-sri-lankan-pukhraj