catapleiite

noun
cat·​a·​plei·​ite | \ ˌkatəˈplīˌīt \
plural -s

Definition of catapleiite

: a rare mineral (Na2,Ca)ZrSi3O9.2H2O consisting of hydrous silicate of sodium, calcium, and zirconium occurring in thin tabular yellow or yellowish brown crystals (hardness 6, specific gravity 2.8)

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History and Etymology for catapleiite

German katapleiit, from Greek kata in the region of, down + pleiōn more + -it -ite; from its occurrence together with other rare minerals

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Cite this Entry

“Catapleiite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catapleiite. Accessed 27 Nov. 2021.

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