rock;

clay;

sand;

gravel;

sandstone;

limestone;

crushed stone;

china clay;

construction stone;

stone from the demolition of buildings or structures;

slate;

sub-soil;

silt;

dredgings.

glass, including fritted enamel;

ceramics, including bricks, bricks and mortar, tiles, clay ware, pottery, china and refractories;

concrete, including reinforced concrete blocks, breeze blocks and aircrete blocks.

glass fibre or glass-reinforced plastic;

concrete plant washings.

moulding sands, including used foundry sand;

clays, including moulding clays and clay absorbents (including Fuller's earth and bentonite);

mineral absorbents;

man-made mineral fibres, including glass fibres;

silica;

mica;

mineral abrasives.

moulding sands containing organic binders;

vitrified wastes and residues from the thermal processing of minerals where the wastes or residues are both fused and insoluble;

slag from waste incineration.

wood or waste combustion, or

coal or petroleum coke combustion (including fly ash and bottom ash produced when coal or petroleum coke is burnt together with biomass).

sewage sludge, or

municipal, clinical or hazardous waste incinerators.

calcium based reaction wastes from titanium dioxide production;

calcium carbonate;

magnesium carbonate;

magnesium oxide;

magnesium hydroxide;

iron oxide;

ferric hydroxide;

aluminium oxide;

aluminium hydroxide;

zirconium dioxide.