DF2014:Bauxite

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Bauxite
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Uses

Location

Properties
Fire-safe Magma-safe
Contains

Wikipedia article

This article is about the current version of DF.

Bauxite is a dark-red sedimentary stone. Once highly prized as the only practical source of magma-safe mechanisms to create magma-proof devices, its importance has declined with the addition of many new heat-resistant forms of stone as well as the ability to make metal mechanisms from iron and steel. Nevertheless, it is still used by some long-time players for nostalgia, and its rare, bloody appearance makes it an interesting aesthetic choice.

Bauxite may contain both sapphire and ruby.

In real life[edit]

In real life, bauxite is an ore of aluminum, but the technology required to extract it is beyond the level possessed by any of Dwarf Fortress' civilizations.

Bauxite is a stone composed primarily of the minerals gibbsite (aluminum hydroxide: Al(OH)3), 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: Al2O3), 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.

Bauxite.