About: http://webisa.webdatacommons.org/43075406

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	It mainly occurs in minerals such as uraninite and brannerite or together with leucoxene with an average concentration of approximately 100 mg/kg U3O8 (Cole, 1998; Wymer, 1999).
http://www.w3.org/ns/prov#wasQuotedFrom	scielo.org.za