Serpentine

DEFINITION

A metamorphic rock which takes a polish, typically dark to yellowish green, sometimes brown, and often with spots or mottling; its snake-like qualities. It is often considered a marble. During the Renaissance green Greek porphyry was described as antique serpentine. "Serpentine" can also refer to other reptilian attributes, as in a curvatious or meandering form.(SER-pən-teen)

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