any of a group of metamorphic rocks containing parallel layers of flaky minerals, as mica or talc, and splitting easily into thin, parallel leaves
Origin of schistFrench schiste ; from Classical Latin schistos (lapis), split (stone) ; from Classical Greek schistos, easily cleft ; from schizein, to cleave: see schizo-
Any of various medium-grained to coarse-grained metamorphic rocks composed of laminated, often flaky parallel layers of chiefly micaceous minerals.
Origin of schistFrench schiste, from Latin (lapis) schistos, fissile (stone), a kind of iron ore, from Greek skhistos, split, divisible, from skhizein, to split; see skei- in Indo-European roots.
- schis′tose′ , schis′tous
From L schistos lapis, "the stone that is easy to split", from Greek skhizein, "to split".