staurolite
n. [矿物] 十字石（一种硅酸铝铁矿）
例句
The corona of cordierite between staurolite and gedrite.
十字石—铝直闪石之间的堇青石冠状体；
Graphite, chlorite, talc, mica, garnet and staurolite are distinctive metamorphic minerals.
石墨、绿泥石、滑石、云母、石榴石及十字石都是典型的变质矿物。
The appearance of staurolite indicates that the metamorphism has reached the low amphibolite grade.
十字石的出现表明变质作用已达到低角闪岩相。
