Corundum is a crystalline form of aluminium oxide (Al2O3) typically containing traces of iron, titanium, vanadium, and chromium. [3][4] It is a rock -forming mineral.

What is Corundum? Corundum is a rock-forming mineral that is found in igneous, metamorphic, and sedimentary rocks. It is an aluminum oxide with a chemical composition of Al 2 O 3 and a …

Mar 10, 2019 · Corundum is a mineral that is primarily composed of aluminum oxide (Al2O3) and is one of the naturally occurring crystalline forms of aluminum oxide. It is a very hard mineral …

Corundum, naturally occurring aluminum oxide mineral (Al2O3) that is, after diamond, the hardest known natural substance. Its finer varieties are the gemstones sapphire and ruby (qq.v.), and …

Jul 2, 2025 · In this article, we’ll explore what corundum is, its key properties, and the many ways it’s used in everyday life—from jewelry to industrial applications.

Detailed description, properties, and locality information guide about the mineral corundum: ruby and sapphire.

Jan 23, 2025 · Discover corundum, the extraordinary mineral that creates rubies and sapphires. Learn its properties, origins, and role in jewelry and technology.

Oct 21, 2024 · Due to natural corundum's popularity and high value, synthetically produced gem corundum has been used as an inexpensive substitute for many years. Corundum is also used …

Corundum is an aluminum oxide mineral of the oxides and hydroxides group, with structural formula Al2O3. The structure consists essentially of a dense arrangement of oxygen ions in …

Corundum, an illustrious gemstone species, derives its name from the Tamil word "kurundam," signifying a deep blue or sapphire. As one of the hardest minerals on Earth, corundum has …