Selenite
var. of Gypsum
calcium sulfate dihydrate
CaSO4·2H2O
![Selenite](http://marulla.com/wp-content/uploads/2008/11/imgp071.jpg)
Selenite
Gypsum, Colorado
Collected on 3 Oct 2008
![Selenite](http://marulla.com/wp-content/uploads/2009/02/imgp108a.jpg)
Selenite
near St. George, Utah
Collected on 19 Aug 2006
var. of Gypsum
calcium sulfate dihydrate
CaSO4·2H2O
Selenite
Gypsum, Colorado
Collected on 3 Oct 2008
Selenite
near St. George, Utah
Collected on 19 Aug 2006