noun mica containing iron and magnesia, generally of a black or dark green color;
a common constituent of crystalline rocks. ·see mica.
BIOTITE
Meaning of BIOTITE in English
Webster English vocab. Английский словарь Webster. 2012
noun mica containing iron and magnesia, generally of a black or dark green color;
a common constituent of crystalline rocks. ·see mica.
Webster English vocab. Английский словарь Webster. 2012