About: http://webisa.webdatacommons.org/316253208

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	Garnet and tourmaline are examples of minerals that can be used to generate negative ions.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com