creedite

noun

creed·​ite
ˈkrēˌdīt
plural -s
: a mineral Ca3Al2F4(OH, F)6(SO4).2H2O consisting of hydrous calcium aluminum fluoride with calcium sulfate, occurring in white to colorless grains, and radiating crystalline masses (hardness 2, specific gravity 2.7)

Word History

Etymology

Creede quadrangle (U.S. Geological Survey), southwest Colorado, its locality + English -ite

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Cite this Entry

“Creedite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/creedite. Accessed 5 Dec. 2022.

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