Thanks to it  heavy specific weight and stable chemical properties . Our garnet sand 20-40# can be used as the bottom media of filter bed in water filtration of chemical industry ,petroleum ,pharmacy ,cleaning drinking water or waste .It is one of the most cost effective alternatives for water filtration beds to replace silica sand and gravel in water filtration ,Especially it can be applied in  beneficiation  of  non-ferrous metals and oil drilling mud weighting agent, because it resets the filter bed more rapidly after the filter bed is back-flushed.