GGG (Gd3Ga5O12) Gadolinium Gallium Garnet Crystal Substrates (5pack)

Trade restrictions between the US and China have impacted the availability of certain critical materials, including Gallium. China is the dominant producer of this raw material so we are currently unable to supply GGG substrates with a known lead time. If you purchase this product please be aware that delivery times may be a minimum of six weeks — potentially longer depending on how international trade discussions progress. Gadolinium Gallium Garnet (GGG, Gd3Ga5O12) is a colorless synthetic crystalline material of the garnet group, with good mechanical, thermal, and optical properties. It has cubic lattice, density 7.08 g/cm3 and Mohs hardness is variously noted as 6.5 and 7.5. Single crystals are made by Czochralski method and can be made with addition of various dopants for modification of color. It is used in fabrication of various optical components and as substrate material for magneto–optical films (e.g YIG and YAG). Garnets are an interesting group of materials with the general