About: http://webisa.webdatacommons.org/201062898

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	Chemicals can etch into gemstones, especially softer ones like opal or amber, and it can destroy the polished surfaces of many stones.
http://www.w3.org/ns/prov#wasQuotedFrom	szul.com