Gypsum (Var: Selenite)
Large Cabinet, 17.5 x 12.5 x 10.2 cm
Caineville, Wayne Co., Utah, USA

This is a huge, really stunning selenite crystal from a U.S. locality. This is a super-transparent crystal with a silky luster and frosted faces on the side. Though it is 3.5 cm thick, you can easily read right through it.