A green, brown, or black splintery, cleavable pyroxene mineral, essentially(Fe, Mg)2Si2O6. 紫苏辉石一种绿色的,棕色的,或黑色的易裂可切开的矿石,主要成分(fe,mg)2si2o6
any of various nonmetallic minerals (calcite or feldspar) that are light in color and transparent or translucent and cleavable. 任何非金属矿物(方解石或长石),浅色,透明或半透明,可分裂。