Garnet shades of green, beige, brown, gray, and blue, but in incandescent light, they appear a reddish or purplish/pink color. This is the rarest type of garnet. Because of its color-changing quality, this kind of garnet resembles Alexandrite. Andradite is a calcium-iron garnet, CaFe(SiO), is of variable composition and may be red, yellow, brown, green or black. The recognized varieties are topazolite (yellow or green), demantoid (green) and melanite (black). Andradite is found both in deep-seated igneous rocks like syenite as well as serpentines, schists, and crystalline limestone. Demantoid has been called the "emerald of the Urals" from its occurrence there,
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