Tiffany Opal Betrandite Slab! Lapidary Stone Slab! Old Stock This one has great flash

This one has great flash on both of the main sides

This particular slab was well before the 1970s

Here is some gorgeous Septarian Nodules with lots of Calcite and designs

and as far as I know is depleted

with most deposits having never been blasted

Tiffany Opal Betrandite Slab! Lapidary Stone Slab! Old Stock This one has great flashTiffany 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