Garnet sand, also referred to as natural corundum or waterjet sand, is a high-performance natural abrasive processed from iron-aluminum garnet through crushing, screening and magnetic separation. With a Mohs hardness of 7–8 and zero free silica content, it is an eco-friendly and safe abrasive material.
Garnet sand features sharp angular particles and a bulk density of 3.98–4.2 g/cm³. Its main chemical components include 36–40% SiO₂, 20–24% Al₂O₃ and 22–24% FeO, delivering stable physical and chemical properties for industrial applications.