An ore containing more than one mineral of economic value
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Tag: <span>C</span>
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
A gradual decrease between geologic horizons
An ore of niobium, FeNb2O6
An line on a map or chart used to depict topography and surface
Mining claims that have a common side or boundary
The movement of rocks by the intrusion of another rock
The point at which 2 distinct rock types meet
The genetic association between igneous rocks derived from the same parent magma