Assertion: mercury | /r/HasProperty | useful
Facets:
value: in lighting
type: LOCATION
value: in recovering gold
type: LOCATION
Source sentences:
text: Mercury easily forms alloys with many metals, such as gold, silver, and tin and as such, has been used to make amalgams since 500 BC, and is also useful in recovering gold from its ores.
text: Mercury is useful in lighting because it contributes to the bulbs' efficient operation and life expectancy.