1. Pyroxene group Fundamental group of mineralComposition of basalt ~ composition ofpyroxeneAbundantly found from mantle rocks torhyolitesBoth metamorphic and igneous 2.…

1. Inosilicates: single chains- pyroxenes Diopside (001) view blue = Si purple = M1 (Mg) yellow = M2 (Ca) Diopside: CaMg [Si2O6] b Where are the Si-O-Si-O chains?? 2. Inosilicates:…

Slide 1 Slide 2 Inosilicates: single chains- pyroxenes Diopside (001) view blue = Si purple = M1 (Mg) yellow = M2 (Ca) Diopside: CaMg [Si 2 O 6 ] b a sin  Where are the…

Slide 1 Forsterite Crystal Myanmar Slide 2 Olivine structure c b M2 M1 Two cation sites: M1 M2 Slide 3 Columns of M1 in the olivine structure b a The M1 sites form columns…

Back to silicate structures: nesosilicates inosilicates tectosilicates phyllosilicates cyclosilictaes sorosilicates Nesosilicates: independent SiO4 tetrahedra Olivine (100)…

EPSC210 Introductory Mineralogy Inosilicates Bowen’s reaction series Bowen’s reaction series describe the typical order of crystallization from a basaltic magma. The…

Back to silicate structures: nesosilicates inosilicates tectosilicates phyllosilicates cyclosilictaes sorosilicates Nesosilicates: independent SiO4 tetrahedra Olivine (100)…

EPSC210 Introductory Mineralogy Inosilicates Bowen’s reaction series Bowen’s reaction series describe the typical order of crystallization from a basaltic magma. The…