Assertion: metal's form | /r/HasProperty | native silver
Facets:
Source sentences:
text: The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite.
text: Copper is one of the few metals that can occur in nature in a directly usable metallic form (native metals).
text: The metal occurs naturally in its pure, free form (native silver), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite.