- plagioclase (n.)
[plagioclase 词源字典]
- "triclinic feldspar," 1868, from German, coined 1847 by German mineralogist Johann Friedrich August Breithaupt (1791-1873) from plagio- + Greek klasis "fracture," from stem of klan "to break" (see clastic). Related: Plagioclastic.[plagioclase etymology, plagioclase origin, 英语词源]