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The production of bituminous coal has also increased very rapidly.
Both anthracite and bituminous deposits have been found.
The usual coal deposits of Alberta are of bituminous or semi-bituminous coal.
Bituminous coal is extensively mined in the vicinity.
Sulphur is obtained near Apt (Vaucluse) and in a few other localities of south-eastern France; bituminous schist near Autun (Sane-et-Loire) and Buxires (Allier).