About: http://webisa.webdatacommons.org/198472172

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	Magnetite is a mineral, one of the two common naturally occurring iron oxides (chemical formula Fe 3 O 4) and a member of the spinel group.
http://www.w3.org/ns/prov#wasQuotedFrom	chinagrindingmill.net