Topic: Mining Corundum
Answers to Common Questions
How is Corundum Mined?
Corundum, which are rubies and sapphires, are usually mined from the eroded gravel beds of high temperature metamorphic and igneous rocks. These exposed rocks are eroded naturally and the gravel is separated mechanically. Read More »
Source: http://answers.ask.com/Science/Chemistry/how_is_corundum_mined
Want A Personal Answer?
728,188 people are answering.
About - Privacy - AskEraser - Advertise - Careers - Ask Blog - iPhone - Android - Help - Feedback ©2012 Ask.com