About: http://webisa.webdatacommons.org/255819970

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, and high-quality specimens will have saturated color and pure purple hues.
http://www.w3.org/ns/prov#wasQuotedFrom	bluenile.com