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The successive chain of mountainous ranges on the western coast of North and South America

A large fracture zone consisting of a series of parallel veins

A reddish metal, symbol, Cu

An ore containing more than one mineral of economic value

Blast patterns or sequences used to influence the path of the blast

Shares in a company with voting right but no fixed or assured dividend other than the performance of the stock price

Unconcentrated, unrefined ore

A refractory cupola used to melt minerals or smelt ore

A main support pillar designed to withstand the bulk of overhead weight

Timbers laid at right angles to each other to create a vertical or horizontal support structure