Assertion: gypsum | /r/HasProperty | formed
Facets:
value: almost exclusively
type: DEGREE
value: very commonly
type: DEGREE
Source sentences:
text: Very commonly it is formed from the hydration of anhydrite by surface waters and groundwaters, and, thus, many gypsiferous strata grade downward into anhydrite rocks.
text: Gypsum, a soft non-metallic mineral, almost exclusively forms in sedimentary settings, as seawater is evaporated or as dissolved ions precipitate from groundwater.
text: When the sulfur dioxide is removed, the gypsum by-product is formed.
text: Gypsum is formed when, due to evaporation, sulfur present in water bonds with oxygen to form a sulfate.
text: Gypsum is formed when calcium-containing water comes in contact with sulfates, either from rocks or via volcanic activity.