Sapphire and Ruby - this is one and the same stone

Visually, sapphires and rubies are very different from each other - have a deep sapphire blue hue, and rubies - red. Nevertheless, it is one and the same stone - corundum, which is a crystalline form of aluminum oxide. The difference in color is achieved due to impurities.



If corundum is red, it is called ruby. If the color of the pink-orange, it paparadzha. Corundum all other colors simply called sapphires - they can be not only blue, but also, for example, green or turquoise.



Besides the beauty, corundum also known because of its high density and hardness - it may leave scratches on almost all of other minerals. Corundum mined in Russia, Zimbabwe, Sri Lanka and India.

via factroom.ru