About: http://webisa.webdatacommons.org/172170077

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	They also have valuable optical properties that are important in such applications as lasers.
http://www.w3.org/ns/prov#wasQuotedFrom	gridovate.com