Wollastonite
[wulәstәnait]
解释:
(noun.) a white or greyish mineral typically found in metamorphic limestone; a silicate of calcium.
伯特校对--From WordNet
解释:
(n.) A silicate of lime of a white to gray, red, or yellow color, occurring generally in cleavable masses, rarely in tabular crystals; tabular spar.
校对:尼古拉斯