Gypsum (var: Selenite) (with ''hourglass'' sand inclusions)

Item Description

These famous specimens are some of the most iconic crystals of Gypsum from any US locality. Oklahoma isn't known for a lot of mineral specimens, but I think a lot of collectors think of these beautiful Gypsum crystals when it comes to mineral of the Sooner State. This piece is a fantastic example of this material as it is an excellent, very sharp, doubly-terminated crystal that would ordinarily be colorless were it not for the beautiful golden-brown sand particle inclusions that have created a gorgeous internal "hourglass" shape. It's not easy to get pieces with such well-defined and equant "hourglass" inclusions like this, and this particular specimen is a beautiful example of this classic material from northern Oklahoma.