Garnet Garnet is a mineral that is not only valued as a beautiful gemstone but also has a powerful industrial side. Uses of Garnet Abrasives: Used as an abrasive in garnet-coated papers, cloths, and discs. Sandblasting: Used in sandblasting to clean metals and stone. Waterjet Cutting: Used in waterjet cutting for precise, powerful, and perfect cutting. Filtration: Works as a filter medium for water and other liquids. Gem Varieties Pyrope Almandine Grossularite Source: Ministry of Mines