A hardened rock-like mixture of sand or gravel, water, and Portland cement
A hardened rock-like mixture of sand or gravel, water, and Portland cement
A processing machine that assists in the separation of particles by weight and density
The heaviest collected particles or minerals reduced from a larger unclassed volume
A passage allowing the flow of volcanic magma
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