About: http://webisa.webdatacommons.org/10868565

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	Calcium has not yet been considered, though it is rather common, especially in rocks with a deeper source.
http://www.w3.org/ns/prov#wasQuotedFrom	du.edu