About: http://webisa.webdatacommons.org/82882574

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	minerals, such as pyroxene and hornblende, make up 30 to 40 percent of the rock.
http://www.w3.org/ns/prov#wasQuotedFrom	berkeley.edu