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wollastonite

noun wol·las·ton·ite \ ˈwu̇-lə-stə-ˌnīt , ˈwä- \

Definition of wollastonite

: a triclinic mineral consisting of a native calcium silicate occurring usually in cleavable masses

Origin and Etymology of wollastonite

William H. Wollaston

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First Known Use: 1823

in the meaning defined above

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