Tiffany stone pendant bezel set with popular sterling silver

the Tiffany stone is bezel set in sterling silver. Included is a silver colored 24" adjustable chain Sometimes called Bertrandite popular. It is an opalized fluorite that comes from a beryllium quarry in Utah. Once abundant, it is now becoming scarce. The quarry owners quit allowing any more collecting years ago after they were sued twice by collectors who injured themselves, in spite of having signed waivers. Now all this beautiful stone is ground up for the valuable beryllium it contains.