About: http://webisa.webdatacommons.org/341690417

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	Quartz is the most common ingredient in most sand...and sand is the primary ingredient in glass.
http://www.w3.org/ns/prov#wasQuotedFrom	glassfacts.info