Assertion: alloy's metal | /r/HasProperty | copper
Facets:
value: often
type: DEGREE
value: for 14k yellow gold
type: TRANSITIVE-OBJECT
Source sentences:
text: Readily dissolves silver, gold and to less but still significant extent many other metals, e.g. copper; this is a particular concern for tin-rich alloys with higher melting points and reflow temperatures.
text: Sterling silver is a blend of 92.5% silver and 7.5% by mass of other metals often copper.
text: consist of other metals - usually copper, but traces of other metals can also be found.
text: For 14K yellow gold, the most common metals combined are copper and silver.