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INTRODUCTION including summary of each chapter
MINERAL PRODUCTION IN UNITED KINGDOM
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anhydrite barytes beds borehole brine cent Central Land Board chieﬂy china clay chromite coal considerable copper Cornwall Country Planning Acts Cropwell Bishop Cumberland depth Derbyshire development charge development value diatomite diﬂiculties discovery district economic eﬂicient estimate existing expenditure exploratory felspar ﬁeld ﬁgures ﬁnance ﬁnancial ﬁrms ﬁrst Fluorspar Fuel and Power fullers future Geological Survey grade gypsum haematite Hemerdon important justiﬁed known lead and zinc Local Planning Authorities long-term magnetite MDC minerals ment million tons mineral deposits Mineral Development Commission mineral occurrences mineral owners mineral resources mineral rights mining industry Minister of Fuel Ministry of Supply national interest nationalised non-ferrous obtained operations organisation output polyhalite possible potash present probable reserves proﬁts prospects proved reserves recommendations regard responsibility salt scientiﬁc Scotland signiﬁcance South Crofty speciﬁc sufﬁcient suﬂicient technical tonnage tons per annum Town and Country underground undertakings Wanlockhead witherite wolfram Yorkshire zinc