About: http://webisa.webdatacommons.org/61694828

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	The most common cementing materials are silica and calcium carbonate which were abundant in the ancient sea.
http://www.w3.org/ns/prov#wasQuotedFrom	geocaching.com