cristobalite

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Definition of cristobalite

1 sense · 1 part of speech · etymology included

noun

(countable, uncountable)A mineral of volcanic rocks that solidified at a high temperature. Cristobalite is chemically identical to quartz, with the chemical formula SiO₂, but has a different crystal structure. Crystals are always microscopic, and usually form small rounded masses.

Definitions from Wiktionary, CC BY-SA.

Named for the type locality at Cerro San Cristóbal, Mexico, + -ite.

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