Assertion: chalcedony | /r/AtLocation | sedimentary
Facets:
value: with agate
type: OTHER
value: in weathering volcanic rocks
type: LOCATION
value: most often
type: DEGREE
Source sentences:
text: Chalcedony is compact silica most often found in sedimentary and volcanic environments.
text: Chalcedony can be found in weathering volcanic rocks, but also in sedimentary ones, often together with agate.