About: http://webisa.webdatacommons.org/117395438

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	This waste, consisting mainly of quartz and sand, useless to the industry, now forms the basis of certain types of concrete and building blocks.
http://www.w3.org/ns/prov#wasQuotedFrom	nortonmede.com