Publisher's Synopsis
Excerpt from Special Reports on the Mineral Resources of Great Britain, Vol. 1: Tungsten and Manganese Ores
Cornwall produces nearly all e tungsten-ores obtained in Great Britain, although a few tons 'e derived yearly from Devon and Cumberland. The common 5 mineral is wolfram, but scheelite occurs in small quanti -s in Cornwall, Devon and Cumberland and constitutes abou three per cent. Of the total output of tungsten-ores.
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