Assertion: chalcedony | /r/MadeOf | small amount of water
Facets:
value: bound in silanole
type: LOCATION
value: as molecular water
type: MANNER
Source sentences:
text: Chalcedony may contain a small amount of water.
text: Chalcedony contains small amounts of water, both as molecular water and bound in silanole (Si-OH) groups (Frondel, 1982).