Actions

Gypsum

From London's Ghost Acres

Revision as of 09:29, 28 April 2016 by Srl997 (Talk | contribs)



Imported from


Used to Make

Description

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wallboard.

https://en.wikipedia.org/wiki/Gypsum