About: http://webisa.webdatacommons.org/166670018

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	They may be hard, such as granite, limestone and coal, or soft, such as sand and clay, but are always made up of minerals.
http://www.w3.org/ns/prov#wasQuotedFrom	funkidslive.com