About: http://webisa.webdatacommons.org/298803291

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	Feldspars are a group of common rock???forming minerals that make up as much as 60% of the Earth???s crust.
http://www.w3.org/ns/prov#wasQuotedFrom	watchingforrocks.com