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Bridging oxygen

Bridging oxygen. Apical oxygen. Non-bridging oxygen. Ca 2 Si 2 O 6. Fe 2 Si 2 O 6. Mg 2 Si 2 O 6. Ca. Mg. Fe. Quad Pyroxenes. Ca. Mg. Fe. Quad Pyroxenes. Ca. Pyroxenoids. Mg. Fe. Wollastonite. Ca. Mg. Fe. Enstatite. Ferrosilite. Ca. Diopside. Hedenburgite. Mg. Fe.

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Bridging oxygen

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  1. Bridging oxygen Apical oxygen Non-bridging oxygen

  2. Ca2Si2O6 Fe2Si2O6 Mg2Si2O6

  3. Ca Mg Fe

  4. Quad Pyroxenes Ca Mg Fe

  5. Quad Pyroxenes Ca Pyroxenoids Mg Fe

  6. Wollastonite Ca Mg Fe Enstatite Ferrosilite

  7. Ca Diopside Hedenburgite Mg Fe Ferrosilite

  8. Ca Diopside Hedenburgite Pigeonite Mg Fe Ferrosilite

  9. Ca Diopside Hedenburgite Augite Pigeonite Mg Fe Enstatite Ferrosilite

  10. Ca Diopside Hedenburgite Augite Pigeonite Mg Fe Enstatite Ferrosilite

  11. Amphibole Site Nomenclature W0-1X2Y5Z8O22 (OH,F)2 W= ions in A site, 10-12 coordinated (Na, K) X= ions in 2 M4 sites, 6-8 coordinated (Mg, Fe2+, Ca, Na) Y= ions in 5 octahedral M2, M1, M3 sites (Mg, Fe2+, Fe3+, Al, Ti) Z= Si or Al in tetrahedral sites

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