Silicates {nesosilicate} can be isolated tetrahedra.
(Mg,Fe)2SiO4 [2 and 4 are subscripts] {olivine}| {chrysolite} {peridotite} is magnesium and iron nesosilicate and is green to yellow-brown. Peridotite igneous rock in mantle can react with seawater to make hydrogen. Hydrogen reacts with carbon-containing molecules to make methane.
CaTiSiO5 [5 is subscript] {titanite} is titanium nesosilicate.
Al2SiO4(OH,F)2 [2 and 4 are subscripts] {topaz, mineral}| is aluminum nesosilicate and can be yellow, amber, or blue. Transparent form {chiastolite} is in Spain.
Fe3Al2(SiO4)3 [3, 2, and 4 are subscripts] {almandine, mineral} is aluminum nesosilicate.
Almandine can be isometric, red, and translucent {garnet}|.
Zr(SiO4) [4 is subscript] {zircon, mineral}| is zirconium nesosilicate and can be orange or red {hyacinth, zircon}.
Zircon can be prismatic {adamantine}.
5-Earth Science-Mineral-Kinds-Silicates
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Date Modified: 2022.0225