About: http://webisa.webdatacommons.org/365243056

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	Iron state of the compounds exist in nature, especially in particular iron oxide.
http://www.w3.org/ns/prov#wasQuotedFrom	chinagrindingmill.net