Sedimentary rock consisting of rounded pebbles cemented into a solid mass
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Category: <span>C</span>
A crushing machine using a tapered gyrating cylinder revolving on its axis within an outer chamber
A compacted mass of mineral matter
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
Separating precious metals with a cupel or small clay cup
Cylindrical cross section of rock obtained by drilling
Solidifying magma taking on the crystal structure inherent of its contained minerals
The outer layer of the Earth including continental and oceanic crust