Tags: Chemical Substance, Mineral.
YAG redirects here. For the IATA airport code see Fort Frances Municipal Airport. For the YMCA sponsored program see YMCA Youth and Government.Yttrium aluminium garnet (YAG Y3Al5O12) is a synthetic crystalline material of the garnet group. It is also one of three phases of the yttria-aluminium composite the other two being yttrium aluminium monoclinic (YAM) and yttrium aluminium perovskite (YAP). YAG is commonly used as a host material in various solid-state lasers.