wol·las·ton·ite /ˈwʊləstəˌnaɪt, ˈwɑ-/
矽酸鈣岩礦,鈣矽石
Wol·las·ton·ite n. 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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wollastonite
n : a white or grayish mineral typically found in metamorphic
limestone; a silicate of calcium