garnet: Quick Facts

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The structure of garnet. This schematic diagram of part of the garnet structure shows the distorted silicon-oxygen tetrahedrons and BO6 octahedrons and the distorted cubes with central A cations.

Dodecahedron, a common crystal form of garnet.

Trapezohedron, a common crystal form of garnet.

Dodecahedron-trapezohedron combination, a common crystal form of garnet.

photomicrograph of corroded garnet

Figure 15: Schematic cross section illustrating the shell structure of the Earth.

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Topics

grossular hydrogarnet yttrium iron garnet yttrium aluminum garnet almandine andradite spessartine uvarovite pyrope Transvaal jade olivine jade opal ringwoodite topaz turquoise jasper jadeite zircon amethyst

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