Gypsum



noun
1.
(a hydrated sulphat of calcium, used for making plaster of Paris) អាចុណ្ណសិលា, មនោសិលា
ENGLISH MEANING
noun
1.
A mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety.