click a picture to enlarge:
DSCN2376.JPG DSCN2377.JPG DSCN2378.JPG DSCN2379.JPG DSCN2380.JPG DSCN2381.JPG
Tiffany Stone / Opalized Fluorite / Bertrandite
click to enlarge:
DSCN2379.JPG
Opal Fluorite rough 8/20 - 02 - From my personal stash... 1 Very Large rough chunk showing purple and white colors in an opalized base. If slabbed there will be some waste as there are large areas of white. It does seem to have an agate core but a lot is not showing so there could be some excellent surprises. This one also has potential for spheres. You don't see this size often these days.
6.5 x 6.5 x 6 inches - 10 pounds - $100.00
SOLD
PLUS MEDIUM FLAT RATE BOX SHIPPING

Rare Opalized Fluorite! This material is 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.