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- Corundum - Wikipedia
Corundum occurs as a mineral in mica schist, gneiss, and some marbles in metamorphic terranes It also occurs in low-silica igneous syenite and nepheline syenite intrusives
- Corundum: Use as a Gemstone, Abrasive, Refractory
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 member of the trigonal crystal system
- Corundum | Properties, Formation, Uses » Geology Science
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 and is commonly used as an abrasive in various industrial applications
- Corundum | Aluminum Oxide, Gemstone, Abrasive | Britannica
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 its mixtures with iron oxides and other minerals are called emery (q v )
- Corundum: Meaning, Properties, and Uses - Wisdom Of The Spirit
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
- Corundum: Mineral information, data and localities.
Corundum is used as an abrasive ("Emery"), and the gem varieties of corundum are better-known as Ruby and Sapphire
- GIAs Gubelin Gem Project: Corundum
Originating historically in southeast and central Asia, and more recently in eastern Africa, these colored varieties of the mineral corundum have been much sought as gems because of their rarity, color and durability
- Corundum main page - University of Texas at Austin
Corundum is a relatively common mineral that once found wide application as an industrial abrasive Gem corundum is mined almost exclusively from gem gravel deposits
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