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单词 quartzite
释义

WordReference Random House Unabridged Dictionary of American English © 2024
quartz•ite  (kwôrtsīt),USA pronunciation n. 
  1. Rocksa granular metamorphic rock consisting essentially of quartz in interlocking grains.
  • 1840–50; quartz + -ite1
quartz•it•ic  (kwôrt sitik),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
quartzite /ˈkwɔːtsaɪt/ n
  1. a very hard metamorphic rock consisting of a mosaic of intergrown quartz crystals
  2. a white or grey sandstone composed of quartz
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