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Is A Granite Fluorite Crusher A Intrusive Igneous

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Jun 13 2018nbsp018332Pegmatite is an intrusive igneous rock made up of large interlocking crystalsThe word quotpegmatitequot comes from the Greek word pegnymi which means quotto bind togetherquot referring to the entwined feldspar and quartz crystals commonly found in the rock Rocks that display large granular crystal structure are called quotpegmatiticquot