cristobalite

English

Etymology

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

Noun

cristobalite (countable and uncountable, plural cristobalites)

  1. (mineralogy) 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.

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Further reading

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