Opalized Fluorite
One of the most scarce, beautiful and unusual stones in the world, this stone only comes from one very small area of beryllium mines in the Utah west desert where they mine (the 4th lightest element) beryllium for use in missile nose cones and many other high-tech metallurgical uses. It is not open to the public for collecting and very little of this material sees anything other than the ore crusher to extract the about 1% to 2% beryllium contained in the opal tuff. Try to find this exquisite gemstone and you'll see that it's not only very rare, it is very scarce. It is a soft to hard opalized stone that forms in very small to 100+ pound "nodules", composed of predominantly opalized fluorite (blues, purples and whites), often with many other minerals such as quartz, dolomite, rhodonite, manganese, beryllium and other surprises. It often has a "crackled" appearance and is sometimes called "Tiffany Stone", "Bertrandite" "Purple Opal" or "Ice Cream Opalite". I call it Opal-Fluorite.

UPDATE: I am now out of the lower grade bulk material with not allot of the higher grades as well. There is no more of this available where I used to dig it so the price has gone up and soon there will be no more available.
click to enlarge
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Opal Fluorite Sphere 10/15 01 LIONS and TIGERS and BEARS OH MY! Extremely Beautiful and Exotic 2 inch Gem Sphere. Colors are even brighter and more vivid in person. This is easily the Best Tiffany Sphere to Date I've cut. You likely won't see another Tiffany Sphere this spectacular even if you go to all the rock shows. Even if you could find one nearly this nice, you would pay allot more for it. It also took a very long time to make. I wish I could keep this one. :( GOOD LUCK! :)
51 mm / 2 inch - 169.8 gram / 849 carat
 I am selling some Tiffany Stone rough for a friend - and cutting some of it as well - he has agreed to let me start some auctions at very low opening bids so don't let him down and have fun bidding!
 $500.00 + SHIPPING SOLD