Image: Double tet
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Description: This diagram depicts two silica tetrahedra joined by a bridging oxygen. Small black spheres are silicon ions; white spheres are nonbridging oxygen ions; the pink sphere is the bridging oxygen ion. The linking of silica tetrahedra by bridging oxygen ions gives high-silica magma its high viscosity.
Title: Double tet
Credit: Own work
Author: Kent G. Budge
Usage Terms: Creative Commons Zero, Public Domain Dedication
License: CC0
License Link: http://creativecommons.org/publicdomain/zero/1.0/deed.en
Attribution Required?: No
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