Bauxite - Wikipedia

Bauxite is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium.Bauxite consists mostly of the aluminium minerals gibbsite (Al(OH) 3), boehmite (γ-AlO(OH)) and diaspore (α-AlO(OH)), mixed with the two iron oxides goethite (FeO(OH)) and haematite (Fe 2 O 3), the aluminium clay mineral kaolinite (Al 2 Si 2 O 5 (OH) 4) and small,Aluminium | Geoscience Australia,Bauxite is the most common aluminium ore. Bauxite occurs as a weathered cover or blanket, known as laterite or duricrust, over a variety of alumina-bearing rocks. It forms when large amounts of rainfall leach away the more mobile elements in the host rock leaving the relatively immobile aluminium with some silicon, iron and titanium.Weipa - Rio Tinto,Innovation at Weipa. Respecting the environment and local communities is a priority for our operations. Amrun – our flagship bauxite development which made its first shipment in December 2018 – was built with advanced technology, innovation and a commitment to the Western Cape York community and strong partnership with the local Wik-Waya Traditional Owners.Fact Sheet - Alcoa,Operations • Huntly Bauxite Mine is the world’s second largest bauxite mine, supplying ore toAlcoa’sPinjarra and Kwinana alumina refineries. It was established in 1976 and is located near Dwellingup in Western Australia (WA). • In 2019, Huntly mine supplied approximately 27 million tonnes of bauxite via a direct overland conveyingGuinean bauxite railway inaugurated | News | Railway,,Jun 28, 2021· Guinean bauxite railway inaugurated 2021-06-28T11:00:00 GUINEA: President Alpha Condé attended the inauguration on June 18 of the 125 km Santou – Dapilon railway, which has been built by the Société Minière de Boké-Winning consortium to link bauxite deposits at Santou II and Houda with the River Nunez port of Dapilon near Kolabouio.Metro Mining Limited - Welcome to Metro Mining,Jun 25, 2021· Metro's Bauxite Hills Mine ore is being shipped to meet China's strongly growing bauxite market; where Cape York bauxite is well known and highly regarded. In order to meet this demand Metro increased the Bauxite Hills Mine 2019 Calendar Year production to 3.5Mt (ASX Announcement)