About: http://webisa.webdatacommons.org/64157714

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	Silica is a glassy mineral derived from fine particles of volcanic ash.
http://www.w3.org/ns/prov#wasQuotedFrom	geocaching.com