Assertion: mercury | /r/AtLocation | the earth's crust
Facets:
value: naturally
type: MANNER
value: including in deposits of coal
type: OTHER
Source sentences:
text: Mercury is a naturally-occurring chemical element found in rock in the earth's crust, including in deposits of coal.
text: Mercury occurs in Earth’s crust on the average of about 0.08 gram (0.003 ounce) per ton of rock.
text: Mercury occurs naturally in the earth's crust.
text: Mercury is a chemical element found in the earth's crust.