Individual silicon tetrahedron can share oxygen os

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Individual silicon tetrahedron can share oxygen (O’s) with their neighboring tetrahedral —this creates a variety of different structures . Five major structures. Isolated or independent EX: Olivine Simples structure each tetrahedral exists by itself, attracts positively charged atoms-to  balance charge needs atoms that total 4- Single chain EX: Pyroxene Each tetrahedra shares two of it O’s with neighboring tetrahedra, attracts positively  charged atoms—to balance charge needs atoms that total 2-. Double chain EX: Amphibole Each tetrahedra shares two or three of its O’s with neighboring tetrahedra, attracts  positively charged atoms. Sheet EX: Mica Minerals Each tetrahedra shares three of its O’s with neighboring tetrahedra, attracts positively  charged atoms. Framework EX: Quartz Each tetrahedra shares all four of its O’s with neighboring tetrahedra, net charge on  each tetrahedra is neutral Other Mineral Groups Oxides Building block—oxygen  Example Mineral—Hematite  Sulfides Building block—Sulfur Example Mineral—Pyrite  Sulfate Building block—Sulfate Example Mineral—Gypsum Native Elements Building block—1 element bonded to itself Example mineral—Diamond, Gold Halides Building block—halogen elements ( Cl, I, Br, F) Example mineral—Halite  Carbonates Building block—Carbonate
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Example mineral—Calcite
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