biotite
n. [矿]黑云母
英英释义
Noun
- dark brown to black mica found in igneous and metamorphic rock
例句
用作名词(n.)
- Biotite is a subordinate constituent of the mafic and ultramafic rocks generally.黑云母一般是镁铁质及超镁铁质岩石中的次要成分。