This file is from a shared repository and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionDouble tet.png
English: 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.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
Captions
Diagram of two silica tetrahedra joined by a bridging oxygen ion