- a polymorph of quartz occurring in volcanic rock in the form of colorless, translucent crystals.
Origin of cristobalite
1885–90; named after San Cristóbal, a hill near Pachuca de Soto, Mexico; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a white microcrystalline mineral consisting of silica and occurring in volcanic rocks. Formula: SiO 2
Word Origin for cristobalite
C19: from German, named after Cerro San Cristóbal, Mexico, where it was discovered
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