Corundum: The mineral Corundum, Sapphire, Ruby info & picturesCorundum is best known for its gem varieties, Ruby and Sapphire. Ruby . Sapphire is also only used to describe the gem variety; otherwise it is simply called.used hydrocone corundum ruby crusher,Corundum: Use as a Gemstone, Abrasive, Refractory - GeologyCorundum is used as a gemstone, abrasive, refractory and much more. Red corundum is a ruby, blue is a sapphire, any other color is a fancy sapphire. Synthetic.Corundum Value, Price, and Jewelry InformationUsed with permission. The corundum family of gemstones consists of ruby and sapphire. Corundum is very compact, dense, . A 3-4 carat ruby of fine quality would be a rare and very expensive gem in today's market. Sapphires over 5 carats,.
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