This is a large and beautiful example of the classic material from Washington, circa the 1950s-1960s. It is an extremely large specimen also, to have survived. Remarkably, it is pristine on that large display face!!! (perhaps there are just a few tiny bruises of no import) .IT IS MUCH MORE VIBRANT AND JUST PLAIN BETTER In PERSON! This is a significant US mineral specimen and, for the size and elegance, a significant example of the species. And I think it is priced cheaply, myself. This comes out of a small midwestern museum collection