About: http://webisa.webdatacommons.org/30214979

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	melting sources of at least Al2O3, ZrO2, and a metal oxide other than Al2 O 3 or ZrO2 to provide a melt;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au