Stefonite is a rare brecciated jasper that was found by Rudy Stefoin in the 1940s in only one location in Wyoming.  The deposit was a small isolated occurrence in a secret location and  not even Rudy's wife knew where it was. The Gem Shop purchased all of this material from Mr. Stefoin.

     We assume that this material was originally a mud deposit because of the distinct aroma when being ground. The deposit seems to have been  crushed and the resulting cracks filled in with black and small blue agate pockets. 

   The large rectangular piece in the center of the photo measures about 43 x 37mm.