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{%type%} Definitions

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n. - A form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements.

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Usage examples (30)
  • Very large sheets or crystals of muscovite form in a pegmatite.
  • The most important sources of sheet mica are the pegmatite deposits.
  • This mineral is typical of a special igneous rock known as a pegmatite.
  • As Pete talked with Packy, Little Will studied the cracks in the pegmatite.
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