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In real life, bauxite is an ore of [[aluminum]]. It is often called "hardpan" and the result of progressed chemical leaching of the soil via water. It's commonly found near the surface in well-aged and weathered soil, and is the world's primary source of gallium and aluminum. The technology required to extract these, however, is beyond the level possessed by any of ''Dwarf Fortress''' civilizations. | In real life, bauxite is an ore of [[aluminum]]. It is often called "hardpan" and the result of progressed chemical leaching of the soil via water. It's commonly found near the surface in well-aged and weathered soil, and is the world's primary source of gallium and aluminum. The technology required to extract these, however, is beyond the level possessed by any of ''Dwarf Fortress''' civilizations. | ||
| − | Bauxite is composed primarily of the minerals gibbsite (aluminum hydroxide: Al(OH)<sub>3</sub>), boehmite (aluminum oxide-hydroxide: γ-AlO(OH)), and diaspore (aluminum oxide-hydroxide: α-AlO(OH)) (none of which are individually present in | + | Bauxite is composed primarily of the minerals gibbsite (aluminum hydroxide: Al(OH)<sub>3</sub>), boehmite (aluminum oxide-hydroxide: γ-AlO(OH)), and diaspore (aluminum oxide-hydroxide: α-AlO(OH)) (none of which are individually present in Dwarf Fortress). Bauxite forms by the weathering and mineralization of various aluminum-rich soils or clays. Despite the correspondence in-game, corundum, the mineral that makes up [[ruby]] and [[sapphire]] (aluminum oxide: Al<sub>2</sub>O<sub>3</sub>), does '''not''' form in bauxite. |
Extracting aluminum from bauxite, even in the most primitive way, requires the use of the Hall–Héroult process: the electrolysis of bauxite which has been dissolved into molten [[cryolite]]. The development of this process transformed aluminum from an exceptionally rare metal to a cheap, utilitarian material. Dwarves have not yet discovered electricity, therefore they cannot make use of electrolysis to get aluminum from bauxite. | Extracting aluminum from bauxite, even in the most primitive way, requires the use of the Hall–Héroult process: the electrolysis of bauxite which has been dissolved into molten [[cryolite]]. The development of this process transformed aluminum from an exceptionally rare metal to a cheap, utilitarian material. Dwarves have not yet discovered electricity, therefore they cannot make use of electrolysis to get aluminum from bauxite. | ||