§ Mr. Skeetasked the Secretary of State for the Environment what is the requirement of British industry of fluorspar and the percentage derived currently from indigenous resources.
§ Mr. CryerThe requirement of British industry of fluorspar, which is used chiefly in the manufacture of hydrofluoric acid and other fluorine chemicals, as a flux in steelmaking and as an opacifer and flux in the ceramics industry, was approximately 175,000 tonnes in 1977.
Over 95 per cent. was derived from indigenous resources.