Assertion: gold | /r/HasProperty | discovered for its abundance
Facets:
value: on every continent on earth estimates
type: LOCATION
value: in the earth's crust
type: LOCATION
Source sentences:
text: Gold is widespread in low concentrations in all igneous rocks and has been discovered on every continent on earth Estimates for Its abundance in the Earth's crust vary between .001 to 0.004 parts per million.