Aphaniticadjective
Pertaining to aphanites, igneous rocks composed of microscopic mineral crystals (fine grains too small to be visible to the naked eye.
Aphaniticadjective
Resembling aphanite; having a very fine-grained structure.
Aphaniticadjective
of or relating to aphanite
Phaneriticadjective
Pertaining to phanerites, igneous rocks composed of macroscopic mineral crystals (coarse grains large enough to be visible to the naked eye).