Assertion: gypsum | /r/HasProperty | produced
Facets:
value: from a natural deposit
type: LOCATION
value: from deposits of this type
type: OTHER
value: through desulphurisation in tpps
type: MANNER
value: commercially
type: MANNER
Source sentences:
text: Gypsum is produced commercially from open pit quarries near Tawas City and Alabaster in Iosco county and from underground mines near Grand Rapids.
text: It is impossible to calculate exactly how much gypsum has been produced from deposits of this type, but it is thought that, owing to the relatively short period of operation of these mines, the figure would be small in comparison to the total amount of gypsum mined in the state.
text: Gypsum is an inert, non-toxic material, which makes it absolutely harmless for the human being, no matter whether it is produced from a natural deposit or through desulphurisation in TPPs.