About: http://webisa.webdatacommons.org/166808878

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	The material is a metallic particle (gold, silver, tungsten), an oxide (rutile, alumina), or silicon carbide, for example.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com