Corundum is a rock-forming mineral and is the second hardest mineral after Diamond and Moissanite. It belongs to the Hematite group of minerals and exhibits a trigonal crystal system. It is best known throughout the world as the mineral of Ruby and Sapphire and also for its hardness.
Corundum symbolizes hope, faith, strength, endurance, kindness, good health, and innocence.
Let us learn more about Corundum.
Corundum is a naturally occurring aluminum oxide mineral that is most commonly found as opaque crystals with dull colors. It is an extremely hard mineral and has two primary gem varieties: ruby and sapphire.
These stones help to open up and balance the third-eye, throat, and heart. It helps to promote insight into the unknown, improve your verbal communication skills, and enhance our emotional development.
In 1725, Corundum was originally named "corinvindum" by John Woodward, an English geologist from the Sanskrit "kuruvinda" which means "Ruby". Later in 1794, an Irish chemist and geologist, Richard Kirwan changed the name into Corundum.
For almost two centuries, these stones have been widely used throughout the world for industrial and manufacturing purposes. Throughout history, it has been known by many names such as adamant, sapphire, ruby, hyacinthos, asteria, etc.
Corundum is commonly found in carbonate, igneous, metamorphic, and sedimentary rocks. In igneous rocks, it is found as a primary mineral such as syenite, nepheline syenite, and pegmatite. Some of the notable places where fine specimen of these minerals are found are Zimbabwe, Pakistan, Afghanistan, Russia, Sri Lanka, USA, and India.
The chemical formula of Corundum is Al2O3 (Aluminium Oxide). It has a hardness of 9 on the Mohs scale.
The value of Corundum can range anywhere from $10 to $100 according to its cut, color, clarity, and quality.
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