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schorl

[shawrl]
noun
  1. Mineralogy. a black tourmaline.
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Origin of schorl

First recorded in 1755–65, schorl is from the German word Schörl
Also called schorl·ite [shawr-lahyt] /ˈʃɔr laɪt/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for schorl

Historical Examples

  • On its northern slope is a vast mass of schorl, the celebrated Roche Rock.

    Nooks and Corners of Cornwall

    C. A. Dawson Scott

  • Some is black with schorl, some, as that of Mill Tor, white as statuary marble.

  • The black shining matter found near where are veins of tin, is schorl.

  • The granite is dark red, often inclosing veins of quartz, crystallized and compact, and likewise well-formed crystals of schorl.

  • Greisen is closely connected with schorl rock both in its mineralogical composition and in its mode of origin.


British Dictionary definitions for schorl

schorl

noun
  1. a black tourmaline consisting of a borosilicate of sodium, iron, and aluminium. Formula: NaFe 3 B 3 Al 3 (Al 3 Si 6 O 27)(OH) 4
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Derived Formsschorlaceous, adjective

Word Origin

C18: from German Schörl, origin unknown
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012