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Webster 1913 Edition


Schist

Schist

(shĭst)
,
Noun.
[Gr. [GREEK] divided, divisible, fr. [GREEK] to divide: cf. F.
schiste
. See
Schism
.]
(Geol.)
Any crystalline rock having a foliated structure (see
Foliation
) and hence admitting of ready division into slabs or slates. The common kinds are mica schist, and hornblendic schist, consisting chiefly of quartz with mica or hornblende and often feldspar.

Webster 1828 Edition


Schist

SCHIST.

[See Shist.]

Definition 2024


schist

schist

English

Schist

Noun

schist (plural schists)

  1. Any of a variety of coarse-grained crystalline metamorphic rocks with a foliated structure that allows easy division into slabs or slates.
    • 1890, George Huntington Williams, The Greenstone Schist Areas of the Menominee and Marquette Regions of Michigan, US Geological Survey, Number 62, page 74,
      Although it shows under the microscope traces of the original gabbro structure and of the original gabbro minerals, no one would hesitate from a microscopical examination to class it with the schists.
    • 1915, Charles Will Wright, Geology and Ore Deposits of Copper Mountain and Kasaan Peninsula, Alaska, US Geological Survey, Professional Paper 87, page 29,
      Narrow bands of schist are interstratified with these limestones, and in turn narrow beds of limestone are interstratified with the schists.
    • 2012, Amy Schoeman, Skeleton Coast, page ii
      Millions of years ago the mica schists surrounding the old Brandberg West Mine became folded and concertinaed by enormous horizontal pressures.

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Etymology

From French schiste, from Latin schistos lapis (the stone that is easy to split), from Ancient Greek σχυζειν (skhuzein, to split).

Noun

schist f, m (plural schisten)

  1. schist

Derived terms

  • schisteus