sand
Instance URI: http://resource.geosciml.org/classifier/cgi/commodity-code/sand
Within scheme: South Australian Commodity Codes
Industrial sand is a term normally applied to high purity silica sand products with closely controlled sizing. It is a more precise product than common concrete and asphalt gravels. Silica is the name given to a group of minerals composed solely of silicon and oxygen, the two most abundant elements in the earth’s crust.