Drainage stone-small smooth rounded stone
Drainage stone are small smooth rounded stone used for draining water away from places where water is unwanted. It is sold lose by the tonne.
Gravel
Clause 804
Blocks
A much bigger block with a cavity/hole going through the center.
Concrete block that weighs one tonne.
Quarry Products
4" clean large stone
A tonne bag of sand.
Aggregate mix
Chips
3/8" Chips. Very small stones
Plastering sand
Regular 4" block with a 30 degree offset.