About: http://webisa.webdatacommons.org/112004852

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	Some varieties of quartz, such as amethyst and citrine, are worn as gems.
http://www.w3.org/ns/prov#wasQuotedFrom	mgsfusedquartz.com