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.

• 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。