This is a very robust, relatively large example of the famous ''Elmwood corners" style of fluorite, formed when complex solution processes occur in the pocket after the formation of an original large cube. This results in the corners of the cube being separated from one another, and settling gently down into the pocket floor, to wait tens of millions of years to be found by us. As you can imagine, few of this size survive either the dissolution process or the wait! So, this is a significant large example. Old material from a 1980s find here, this piece and #11 in the same update are from the same pocket and are so similar in color and appearance that, they might even be corners from the same original large cube. It is complete all around and easily robust enough to stand, mounted vertically in a base. It is difficult to tell sometimes with the fancy, subtly patterned surfaces, but this seems nearly complete and pristine all around with just a few possible tiny dings, and one small tiny cleavage at one edge-corner tip. These are so rare in this size and quality! Petroleum inclusions within are highly fluorescent. Formerly in the Steve Neely and Scott Kleine collections (Steve had the most important Elmwood collection ever assembled!)