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A crystalline form that is readily recognized by its planar faces. Euhedral minerals are recognize by their characteristic crystalline faces. In a rock where most of the grains are euhedral, the fabric is said to be idomorphic granular.

Synonyms and Related Terms

automorphic; idiomorphic; euédrico (Port.); automórfico (Port.); idiomórfico (Port.)

Resources and Citations

  • Walter C. McCrone, John Gustave Delly, The Particle Atlas, W. McCrone Associates, Chicago, IV, 1972
  • José Delgado Rodrigues, LNEC, Submitted information, 2009.

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