• WordNet 3.6
    • n wollastonite a white or greyish mineral typically found in metamorphic limestone; a silicate of calcium
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Webster's Revised Unabridged Dictionary
    • n Wollastonite (Min) A silicate of lime of a white to gray, red, or yellow color, occurring generally in cleavable masses, rarely in tabular crystals; tabular spar.
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Century Dictionary and Cyclopedia
    • n wollastonite A mineral occurring in tabular crystals (hence called tabular spar), also massive, cleavable, with fibrous structure. It has a white to yellow or gray color, and a vitreous to pearly cleavage. It is a silicate of calcium (CaSiO3), and belongs to the pyroxene group.
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Webster's Revised Unabridged Dictionary
After Dr. W. H. Wollaston, , an English chemist, who died in 1828


In literature:

The Liassic beds are often metamorphosed and the limestones contain garnet and wollastonite.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2" by Various