corundum | mineral - Encyclopedia Britannica www.britannica.com › ... › Earth Sciences
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Natural and synthetic corundum are used in a wide variety of industrial applications because of their toughness, hardness, and chemical stability.
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It is commonly used as an abrasive on sandpaper and on large tools used in machining metals, plastics, and wood. Emery, a variety of corundum with no value ... Geology and occurrence · Synthetic corundum · Structure and physical properties
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As a gemstone it is used. · Because of its hardness, it is used as an abrasive. · It's used for polishing and sanding of optical lenses. · Because of its high ...
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Aug 9, 2022 · Corundum has several applications aside from being a precious gemstone. It is used as abrasives, refractory materials, and optical and space ...
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Highly included corundum is typically used as an abrasive in products like sandpaper, nail files, belt sanders, etc. Since other materials with similar ...
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Corundum is easily synthesized for industrial and manufacturing purposes, and has been for almost two centuries. Its widest use is for hardening heavy-duty ...
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Nov 19, 2019 · Natural and synthetic corundum are used in a wide variety of industrial applications because of their toughness, hardness, and chemical ...
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Uses Area · Used as gemstone. · It is used as abrasive because of its hardness. · It is used for polishing and sanding of optical glasses. · It is also used in ...
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Its widest use in the US is for hardening heavy-duty concrete floors and for nonskid material on bridges. Because synthetic corundum is so hard and also ...
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Stones from Kashmir are often the most valuable and exhibit an intense, velvet-like blue. Burmese sapphires are also highly valued for their saturated blue.
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Corundum - Wikipedia” “Use as a Gemstone” “Corundum is a crystalline form of aluminium oxide (Al2O3) typically containing traces of iron, titanium, ...
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Corundum is best known for its gem varieties, Ruby and Sapphire. Ruby and Sapphire are scientifically the same mineral, but just differ in color. Ruby is the ...
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The mineral corundum provides a good example. Corundum is an extremely hard substance. Small bits of corundum are part of the rock called "emery" which has been ...
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Though corundum is used as a gemstone, it has other qualities that make it useful in other industries. Since it is very hard, it is perfect as an abrasive ...
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