Category synthetic mineral Crystal system cubic | Formula(repeating unit) Gd3Ga5O12 Density 7.08 g/cm³ | |
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Color transparent, colorless to light brown or yellow. May also be orange or blue. Mohs scale hardness 6.5 (other sources 7.5) Luster vitreous to subadamantine | ||
Ggg wafers gadolinium gallium garnet gd3ga5o12 sales dmphotonics com
Gadolinium Gallium Garnet (GGG, Gd3Ga5O12) is a synthetic crystalline material of the garnet group, with good mechanical, thermal, and optical properties. It is typically colorless. It has a cubic lattice, a density of 7.08 g/cm³ and its Mohs hardness is variously noted as 6.5 and 7.5. Its crystals are produced with the Czochralski method. During production, various dopants can be added for colour modification. The material is also used in fabrication of various optical components and as a substrate material for magneto–optical films (magnetic bubble memory). It also finds use in jewelry as a diamond simulant. GGG can also be used as a seed substrate for the growth of other garnets such as YIG.
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References
Gadolinium gallium garnet Wikipedia(Text) CC BY-SA