From WebRef.org
Jump to navigationJump to search
  1. Said of the texture of an igneous rock in which the crystalline components are not distinguishable by the unaided eye; also said of a rock or a groundmass exhibiting such texture. CF: aphanite; phaneritic. Syn: fine-grained
  2. A crystalline texture with individual crystals too small to be visible to the unaided eye. Syn: cryptocrystalline
    Source: Dictionary of Mining, Mineral, and Related Terms

Sponsor: Download ISO/TS 8000 Data Standard