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rock crystal

American  

noun

  1. transparent quartz, especially when colorless.


rock crystal British  

noun

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

"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

Etymology

Origin of rock crystal

First recorded in 1660–70

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The rock crystal panels are engraved with land and seascapes, and surrounded by floral-painted enamel.

From BBC • Oct. 23, 2020

The pieces — made of materials including marble, alabaster, bronze, leather, foam, rock crystal and concrete — were the subject of a recent show at the Museum of Contemporary Art, or MOCA, in Los Angeles.

From Los Angeles Times • Jul. 5, 2017

SUN All-ages presentation with rock, crystal and fossil hunter John Cornish, 1 p.m.

From Seattle Times • Mar. 2, 2017

Gilded mirror frames are studded with porcelain fragments, while graceful bronze chandeliers bear lyrical flourishes of plaster, rock crystal, and white marble.

From Architectural Digest • May 15, 2015

At first, all she could think about was how she wouldn’t get to make her own rock crystal stalactites for her Carlsbad Caverns diorama idea.

From "Book Scavenger" by Jennifer Chambliss Bertman

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