Pyroxene GroupSep 13, 2005 . XYZ2O6. Pyroxenes are classified based on the occupancy of the M1 and M2 site. In . Longitudinal sections will show parallel extinction.parts ordinary pyroxene crusher zenit,Nomenclature of pyroxenes - Mineralogical Society of AmericaPyroxenes established by the Commission on New Minerals and Mineral Names of the . widely used names have been chemically defined, by combining new and conventional . one to specify a part of the compositional range shown.Inosilicates (Pyroxenes and Amphiboles) - Tulane UniversityNov 14, 2011 . The most important inosilicates are the pyroxenes. These . The pyroxenes can be divided into several groups based on chemistry and.
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