What is Sea Garnet?
Sea garnet is a garnet abrasive that has eroded from rock garnet and has been carried by natural processes into seas and oceans. Because it has been consistently exposed to pounding waves, sea garnet tends to have obtuse angles, smaller sizes and rounder shapes compared to rock garnet. Also because this garnet abrasive is extracted from seas and beaches, this abrasive has a higher chloride and salt content than regular rock garnet abrasive.
The main advantage of this type of abrasive compared to rock garnet is that it is cheaper. Because it is readily available, collection process is mainly composed shoveling and sieving. This leads to low production costs which translates to savings in buying this particular abrasive.