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rock crystal

noun
  1. transparent quartz, especially when colorless.
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Origin of rock crystal

First recorded in 1660–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for rock crystal

Historical Examples of rock crystal

  • The gold mines of Tampasuk have been mentioned; there are also mines of rock-crystal.

    The Expedition to Borneo of H.M.S. Dido

    Henry Keppel

  • Objects in rock-crystal have the inconvenience of being very expensive.

  • I don't weep over the lime-spar, because it is not as hard as a rock-crystal.

    The Red Room

    August Strindberg

  • Well she knew it, and well she knew the glitter of the rock-crystal walls.

    The Fairy Book

    Dinah Maria Mulock (AKA Miss Mulock)

  • It was limpid; like a rock-crystal its value lay in its transparency.

    Penguin Island

    Anatole France


British Dictionary definitions for rock crystal

rock crystal

noun
  1. a pure transparent colourless quartz, used in electronic and optical equipment. Formula: SiO 2
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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