About: http://webisa.webdatacommons.org/284637477

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 agates may be found in various kinds of rock, they are classically associated with volcanic rocks but can be common in certain metamorphic rocks which are the result of the transformation of a pre-existing rock types.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com