The Probert Encyclopaedia of Rocks & Minerals

BRIMSTONE

Brimstone is another name for sulphur, though properly, brimstone is roll sulphur. Sulphur is purified by distillation, the vapour being led into brick-work chambers. Part of the vapour liquefies, falls to the bottom, and can be run off and cast in cylindrical moulds, and when solid is known as brimstone.
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