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| por·phy·ry [ páwrfəree ] |
noun |
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| Definition: |
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1. reddish purple rock: a reddish purple rock containing large distinct feldspar crystals embedded in a fine-grained groundmass
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2. rock with large crystals: any predominantly fine-grained igneous rock that contains isolated large crystals
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| [14th century. Via Old French porfire< Greek porphuritēs< porphura "purple," from its color] |
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