About: http://webisa.webdatacommons.org/455154909

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	It is composed of iron oxides, from a kind of clay or quartz called sinople.
http://www.w3.org/ns/prov#wasQuotedFrom	wikimedia.org