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Bauxite
Bauxite
, an
aluminium
ore
, is the world's main source of aluminium. It consists mostly of the
minerals
gibbsite
Al(OH)
3
,
boehmite
γ-AlO(OH) and
diaspore
α-AlO(OH),
mixed
with the two
iron oxides
goethite
and
haematite
, the
clay mineral
kaolinite
and small amounts of
anatase
TiO
2
. In 1821 the
French
geologist
Pierre Berthier
discovered bauxite near the village of
Les Baux
in
Provence
, southern
France
. In 1861, French chemist
Henri Sainte-Claire Deville
named the mineral "bauxite".
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