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cristobalite

American  
[kri-stoh-buh-lahyt] / krɪˈstoʊ bəˌlaɪt /

noun

Mineralogy.

  1. a polymorph of quartz occurring in volcanic rock in the form of colorless, translucent crystals.

cristobalite British  
/ krɪsˈtəʊbəˌlaɪt /

noun

  1. a white microcrystalline mineral consisting of silica and occurring in volcanic rocks. 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 cristobalite

1885–90; named after San Cristóbal, a hill near Pachuca de Soto, Mexico; -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.