Minerals of local and national importance
Mineral resources are natural concentrations of minerals or, in the case of aggregates, bodies of rock that are, or may become, of economic interest due to their inherent properties.
The National Planning Policy Framework (NPPF) defines mineral resources of local and national importance as: 'Minerals which are necessary to meet society’s needs, including aggregates, brickclay (especially Etruria Marl and fireclay), silica sand (including high grade silica sands), cement raw materials, gypsum, salt, fluorspar, shallow and deep-mined coal, oil and gas (including hydrocarbons), tungsten, kaolin, ball clay, potash and local minerals of importance to heritage assets and local distinctiveness.'
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