A glassy,usually yellowish gray variety of orthorhombic pyroxene having a magnesium silicate base,mainly MgSiO3,usually found embedded in igneous rocks and meteorites.

 
  • 顽火辉石一种象玻璃似的,常为淡褐灰色的正方晶辉岩,具有一个镁硅酸盐基,主要为硅酸镁MgSiO3,通常可在火成岩及陨石中发现。
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