River garnet

River garnet through the impact of water, is a natural abrasive. Hardness, and more smooth, less damage to materials and machines.

Compared with rock garnet, river garnet sand can keep the cutting surface smooth and flat. 

Because river sand is formed after a long time of impact, so its grain edge surface is more rounded, less damage to the material. 

Products cut from river garnet are more popular with consumers.