Garnet and is one of the most prized of garnet varieties. Topazolite is a golden-yellow variety and melanite is a black variety. Grossular is a calcium-aluminium garnet with the formula CaAl(SiO), though the calcium may in part be replaced by ferrous iron and the aluminium by ferric iron. The name grossular is derived from the botanical name for the gooseberry, "grossularia", in reference to the green garnet of this composition that is found in Siberia. Other shades include cinnamon brown (cinnamon stone variety), red, and yellow. Because of its inferior hardness to zircon, which the yellow crystals resemble, they have also
Mount Garnet, Queensland boasted a water source that never ran dry. Now it is used for a water supply to the township. Fresh water is continually pumped from the Herbert River into Warruma, then pumped out of there into holding tanks for the town supply. At the 2006 census, Mount Garnet had a population of 458. The Mount Garnet area has a number of heritage-listed sites, including: Mount Garnet State School opened on 22 January 1901. A railway was authorised to be built from Lappa, on the then Chillagoe Railway and Mines Company's line, to Mount Garnet by the Mount Garnet Freehold Mining