斜长石通常呈白色，具有完全解理和聚片双晶。
Plagioclase is usually white-colored with perfect cleavage and albite twins .
透辉石有两个方向的完全解理，通常为孪晶生成，短且成圆柱形，断口参差不平。
Diopside crystals have a perfect cleavage in two directions , are often twinned and are short and columnar , but with an uneven fracture .
完全解理