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hornblende schist

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noun Petrography.
  1. a variety of schist containing needles of hornblende that lie in parallel planes.

Origin of hornblende schist

First recorded in 1815–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hornblende schist

Historical Examples

  • This killas is converted into hornblende-schist near the contact with the veins.

    A Manual of Elementary Geology

    Charles Lyell.

  • Many outcrops of similar rocks have been traced in the northern zones of the Alps, often with serpentine and hornblende-schist.

  • The term is to some extent synonymous with “amphibolite” and “hornblende-schist.”