mica : Idioms & Phrases


Mica diorite

  • (Min.), an eruptive rock allied to diorite but containing mica (biotite) instead of hornblende.
Webster 1913

Mica powder

  • a kind of dynamite containing fine scales of mica.
Webster 1913

Mica schist, Mica slate

  • (Geol.), a schistose rock, consisting of mica and quartz with, usually, some feldspar.
Webster 1913