Tiffany Opal Betrandite Slab! Lapidary Stone Slab! Estate Sale Some druzy may need to

Some druzy may need to be worked through or pre ground

I personally don't recognize it

Measurements (inches - longest - approx): 7

Each one looks like it'll cut up great

Tiffany Opal Betrandite Slab! Lapidary Stone Slab! Estate Sale Some druzy may need toTiffany Stone is a form of Opal and Betrandite, 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 Betrandite beryllium metal within! Beryllium is often used in aerospace and rocket manucfacturing, due to it being a light weight metal with