Tiffany Opal Betrandite Slab! Lapidary Stone Slab! Old Stock One chunk even has some

One chunk even has some gorgeous purple fortification with purple agate

This one has great flash on both of the main sides

It more than likely comes from Oregon or Washington

which gives this material its gorgeous pattern and colors

and as far as I know is depleted

Tiffany Opal Betrandite Slab! Lapidary Stone Slab! Old Stock One chunk even has someTiffany Stone is a form of Opal and Bertrandite, and is a super rare lapidary material from Utah. It is generally a purple, white, and black opal, but it can also more rarely have blue and orange! To my knowledge, it is now a private government owned mine, with Tiffany Opal being mined and crushed for the precious Bertrandite beryllium metal within! Beryllium is often used in aerospace and rocket manufacturing, due to it being a light weight metal