boltonite /'bәultә,nait/ 📖 中文释义 镁橄榄石, 假镁榄石, 波尔顿石 📘 English Definition(英文释义) n. A granular mineral of a grayish or yellowish color,found in Bolton, Massachusetts. It is a silicate of magnesium,belonging to the chrysolite family. ← boltonia B 字母词表 boltoperated →