About: http://webisa.webdatacommons.org/89013572

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	Although they may appear solid, most of these rocks are sedimentary and made of sand or carbonate pieces, explained Professor Haszeldine.
http://www.w3.org/ns/prov#wasQuotedFrom	bbc.co.uk