Prospecting is also called

A surface mine that involves moving away large amounts of overburden is

What type of pollution can mining cause

In smelting this bonds with the impurities

An orderly repeating structure is called a

One of the top producing countries of lead is

These mines may be used later for document storage

If a mineral is dull and an insulator it is a

This mine is a series of small holes

AMD is

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