Any of a group of crystalline silicate minerals common in igneous and metamorphic rocks and containing two metallic oxides, as of magnesium, iron, calcium, sodium, or aluminum.
英
美
- 辉石一种晶体硅酸盐矿物,广泛分布在火成岩与变质岩中,含有两种金属氧气物,例如镁,铁,钙,钠或铝