Assertion: nickel | /r/HasProperty | copper
Facets:
Source sentences:
text: As of September 19, 2013, the melt value of a US nickel (copper and nickel included) is $0.045, which is 90% of the face value.
text: The word comes from the German Kupfernickel, for “copper demon” because miners were tricked as they first thought the nickel was copper.