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Definition of anhedral

Said of those minerals of igneous rocks that are not bounded by their own crystal faces, but have a shape impressed on them by the adjacent minerals during crystallization, lacking any relation to the minerals own crystal forms and symmetry. Primary faces may have been obscured by later physical or chemical erosion.

Synonym of: allotriomorphic, xenomorphic

Compare with: euhedral, subhedral


Mineral and/or Locality  
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