Need help with aluminium/bauxite stuff?
The main ore of aluminum is bauxite, the source of over 99% of metallic aluminum. Bauxite is the name for a mixture of similar minerals that contain hydrated aluminum oxides. These minerals are gibbsite (Al(OH)3), diaspore (AlO(OH)), and boehmite (AlO(OH)). Because it is a mixture of minerals, bauxite itself is a rock, not a mineral. Bauxite is reddish-brown, white, tan, and tan-yellow. It is dull to earthy in luster and can look like clay or soil. It is mined in open cut mines the main problems are dust and damage caused by stockplies and runoff. Nearly all of this is from the first two sites I have listed.