Schist (Gr. schistos, 'split') is a term properly applied to crystalline rocks with a foliated structure (see FOLIATION), as mica-schist, hornblende-schist, &c. Indurated clay-rocks with a fissile structure are sometimes erroneously described as schists. For the schistose rocks, see PETROGRAPHY and GEOLOGY.
Schist
Chambers's Encyclopaedia, Volume 9: Bound to Swansea, p. 210
Source scan(s): p. 0221