About: http://webisa.webdatacommons.org/120891348

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 is 96% copper, the remainder being silicon and other trace elements???sometimes very small amounts of zinc, often measured in single percentage points.
http://www.w3.org/ns/prov#wasQuotedFrom	proboat.com