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Gallium Gadolinium Garnet (GGG, Gd₃Ga₅O₁₂) is a material with good mechanical, thermal, and optical properties. It is typically colorless. It has cubic lattice, density 7.08 g/cm³ and Mohs hardness 7.5. Its crystals are made by Czochralski method and can be made with addition of various dopants. It is used in fabrication of various optical components and as substrate material for magneto–optical films. It also finds use in jewelry as a diamond simulant.

See also:

• Yttrium aluminium garnet
• Yttrium iron garnet

[edit] External links

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