About: http://webisa.webdatacommons.org/145712701

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	f black, opaque substance consisting mainly of compounds of titanium, iron and silicon.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com