rainbow gemstone sapphire

Sapphire is naturally mined, although there some incidents that it’s grown in a lab using a chemical method called the Verneuil Process after a French Chemist Auguste Verneuil who developed it in 1902. This method has resulted into this precious jewel being manufactured in large quantities. Although it should be pointed out that the gemstone has also some industrial use.One...

Gemstone Sapphire is a very precious gemstone that belongs to the corundum family. This is but a mineralogical name given to crystallized Aluminum oxide. Corundum in pure form is extremely hard to come by. But it’s usually colorless. Some small measures of metallic impurities – especially iron and chrome are found, giving rise to an array of color variations in...