A silver-gray, metallic element. Symbol, Co
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Category: <span>C</span>
An isometric metallic mineral, Cr
Large grains of Gold
The metamorphic processes which form coal
A carbonaceous rock formed through the alteration of plant remains, used as fuel
The binding of individual particles to form larger particles known as flocs or agglomerates
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