PETROLOGY TERMS

Petrology is a discipline of geology that studies rocks, minerals and the processes that act on them. Scientists focus on the formation of rocks in this field of science.

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Pebble

Pebble, a smooth, rounded stone usually less than 2 inches (64 mm) in diameter.

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  • Travertine
    Travertine

    Travertine, a soft, compact or porous form of limestone. It is usually pale yellow, but may be dark yellow, brown, or streaked with light and dark bands because of impurities. See more »

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