21st Century
Mining for
K-12 Educators

Mineral processing – Recovery of metals from the rock

Mineral Processing and Physical Methods of Concentration


Minerals are recovered from the rock in which they occur by various methods.  This lecture discussed the physical removal of economic minerals, such a copper, molybdenum, lead or zinc by physically grinding the rock to as size the surface of the economic mineral, such as copper, is exposed, then treating it with a chemical which allows it to attach itself to an air bubble and be “floated” to the surface.  Other methods “capture” the economic mineral, such as gold or lead using gravity methods – i.e. the old prospectors gold pan.  In this lecture you will learn about several of these methods.

Educators who wish to use portions of these free online lectures are welcome to do so as long as credit is given to CMAEF for its content.

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