Gemstone industry in Greenland gemstone ruby. The native inhabitants continued to assist the European explorers with their ruby exploration, leading them to some half dozen locations, spread out for over a hundred miles along the southwest shores of Greenland, known as the Kitaa Coast. Ruby and pink sapphire are the red and pink varieties of the mineral corundum, an aluminum-oxide mineral Al2O3. The pink/red colour is formed in corundum by adding the element chromium to its crystal structure. Spectroscopy of rubies from the Aappaluttoq occurrence in Greenland confirm the presence of chromium as well as showing absorption in the UV region indicating high Fe
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