schist

S0134600 (shĭst)n. Any of various medium-grained to coarse-grained metamorphic rocks composed of laminated, often flaky parallel layers of chiefly micaceous minerals.

[French 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′ (shĭs′tōs′), schis′tous (-təs) adj.

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shist

n (Geological Science) any metamorphic rock that can be split into thin layers because its micaceous minerals have become aligned in thin parallel bands[C18: from French schiste, from Latin lapis schistos stone that may be split, from Greek skhizein to split] ˈschistose adj schistosity n

schist

(ʃɪst)

n. any of a class of crystalline metamorphic rocks whose constituent mineral grains have a more or less parallel or foliated arrangement. [1775–85; < New Latin schistus, Latin (lapis) schistos < Greek schistós divided, curdled, divisible, derivative of schízein to split, with -tos adj. suffix] schis′tose, schis′tous, adj.

schist

(shĭst) A metamorphic rock characterized by a very fine alignment of its minerals, which allows it to be easily split into flakes or slabs. Because schist often contains abundant mica, it usually has a shiny, gray appearance. See Table at rock.

schist

A metamorphic rock rich in flattened, aligned minerals. It comes from slate and basalt.

Thesaurus

Noun

schist - any metamorphic rock that can be split into thin layersmetamorphic rock - rock altered by pressure and heat

Translations

schistescistoardesiaschisto

schist

(shĭst), metamorphic rockrock,
aggregation of solid matter composed of one or more of the minerals forming the earth's crust. The scientific study of rocks is called petrology. Rocks are commonly divided, according to their origin, into three major classes—igneous, sedimentary, and metamorphic.
..... Click the link for more information. having a foliated, or plated, structure called schistosity in which the component flaky minerals are visible to the naked eye. Schists are distinguished from the other foliated rocks, slates and gneisses, by the size of their mineral crystals; these are larger than those of slates, being visible to the naked eye, but smaller than those of gneisses, which are coarsely foliated rocks as opposed to finely foliated, or schistose, rocks. As contrasted with the folia of slates, the folia of schists are rough-surfaced and irregular. Schists split readily along their planes of schistosity, like slates along cleavage lines. Like other foliated rocks, schists owe their origin to the metamorphism of preexisting rocks. The commonest of the schists is mica schist, the essential minerals of which are quartzquartz,
one of the commonest of all rock-forming minerals and one of the most important constituents of the earth's crust. Chemically, it is silicon dioxide, SiO₂.
..... Click the link for more information. and micamica
, general term for a large group of minerals, hydrous silicates of aluminum and potassium, often containing magnesium, ferrous iron, ferric iron, sodium, and lithium and more rarely containing barium, chromium, and fluorine.
..... Click the link for more information. (biotite or muscovite). Other schists are hornblende schist, talc schist, chlorite schist, and graphite schists. Schists are abundant in the Precambrian (Archean and Proterozoic) rocks.

schist

[shist] (geology) A large group of coarse-grained metamorphic rocks which readily split into thin plates or slabs as a result of the alignment of lamellar or prismatic minerals.

schist

A rock, the constituent minerals of which have assumed a position in more or less closely parallel layers or folia; due to metamorphic action; used principally for flagging.

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any metamorphic rock that can be split into thin layers because its micaceous minerals have become aligned in thin parallel bands

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Words related to schist

noun any metamorphic rock that can be split into thin layers

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