Ruby: an introduction
Red is the color of love, passion, vitality, abundance, and strength. It is also the color of one of the most beautiful gemstones in the world – ruby. In ancient times, ruby was known as the "king of precious stones".
Ruby has everything you need for the most precious red gemstones in the world with pictures – great color, incredible hardness, and extraordinary shine. The color of ruby can vary from bright orange-red to dark purple-red. Large rubies are hard to find, which is what makes them rare. In some cases, they can be more valuable than diamonds of the same size.
It is said that the perfect rubies that Rubma mines are worth millions of dollars. Although these mines produce outstanding rubies, they rarely produce rubies weighing more than a few carats.
Ruby is a type of corundum consisting of ruby and sapphire. Corundum, next to diamond, is one of the hardest substances on earth. On the Moh scale, it is recorded as 9, which is second only to diamonds. Pure corundum is colorless and only red corundum can be considered ruby red.
All other colors of corundum are considered sapphires. Corundum is formed in igneous rocks with a relatively high aluminum content but very low silicon content and in metamorphic media with similar chemical properties.
Like emeralds, ruby is the dominant feature. The color of ruby can vary from bright orange-red to dark purple-red. As already mentioned, ruby belongs to the class of corundum and only red corundum can be classified as ruby. All other colors are sapphires.