Tag «minerals of orthoclinic pyroxene»

Minerals of pyroxene group

Pyroxene forms an important group of rock minerals. They have a general formula XYSi2O6, where X is diavalent caution mainly Ca, Fe, Mg, while Y is monovalent cation like Na, Li and Trivalent caution Al, Fe. In some cases, Al may partly replace silicon. The common pyroxenes are Ca, Mg, and Fe silicates. They are …