About: http://webisa.webdatacommons.org/119895019

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	Amethyst is a variety of quartz with the characteristic composition SiO2, but distinctive and popular for its dramatic purple color.
http://www.w3.org/ns/prov#wasQuotedFrom	gsu.edu