Gypsum

Selenite

Today, we are looking at gypsum.  Wikipedia tells me that selenite is a form of gypsum.  I read that gypsum is used in wall board for houses.  I initially thought that this was a modern innovation.  I learned, today, that it is also contained in the lath and plaster walls of older homes.  Gypsum is a mineral which forms from a solution of calcium sulfate and water.  It is like salt in that regard.  You can't see it in solution but as the water evaporates, it becomes visible.  It is found in many every day items, see  Geofacts No. 11.  It seems that Ohio ranks 15th in the production of gypsum.


http://www.larrysimages.com/


Blog



feed:  http://www.larryatlarrysimages.com.blogspot.com/atom.xml


If you wish to unsubscribe, email to larry@larrysimages.com with "unsubscribe" in the subject line.