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

Definition of wollastonite

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

Origin and Etymology of wollastonite

William H. Wollaston

First Known Use: 1823

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