Manarin garnets, also known as orange spessartite garnets, are naturally occurring stones found primarily in Africa that are known for their orange appearance. They are members of the spessartite family of garnets, and their chemical composition is that of silicate of magnesium and aluminium. It has a refractive index between 1.78-1.81, and a factor of 6.5-7.0 on Mohs hardness scale putting it with a given quartz crystal.