Synthetic Corundum

Famous for its toughness, hardness

Corundum is an aluminum oxide with a chemical composition of Al2O3.

The corundum mixed some chromium metal inside with a deep red color is known as a “ruby.”

Gemstone-quality corundum with blue color is called a “sapphire.” Colorless corundum is known as “white sapphire.”

Pure corundum is defined to have 9.0 on the Mohs scale. It is a hexagonal crystal structure with 4.00 proportion.

Natural and synthetic corundum is used in a wide variety of fields because of their toughness, hardness, and chemical stability.

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