Another term for the shape of the earth surface at a specific point
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Category: <span>R</span>
The layer of rocks, gravel, sand, soil and other matter between surface and bedrock
Ore whose minerals resist separation by initial chemical processes and require further chemical decomposition
The percentage of valuable minerals successfully recovered in ore
A unit of measuring exposure doses of X-ray or gamma radiation
Any natural mineral, alone or in combination
A large pile of boulders and gravel, collected and concentrated by the action of a river or other channel
A tetragonal mineral and ore of titanium, TiO2
A silvery white, hexagonal platinum group metal. Symbol, Ru
Water that drains from a flood plain, or higher structure into streams, rivers, or other channels