Utah Septarian Nodule Slab! Lapidary Stone Slab! Copal Here is a great box

Here is a great box of old stock material from prior to the 60s

Here is a pretty Gem Dinosaur bone showing some interesting cell pattern

and color given by present minerals

The other photos have been taken wet to simulate a polish

Utah Septarian Nodule Slab! Lapidary Stone Slab! Copal Here is a great boxSeptarian Nodules are round stones that were organic fossils that were devoured by bacteria and replaced with calcite! They can be geodes (hollow with calcite crystals), or solid with unique and interesting patterns! Most Septarian Nodules take an excellent polish and work into some fine cabochons or display slabs! Surviving fossils can also sometimes be found within Septarian Nodules! Most Septarian Nodules come from Utah and Morocco! Measurements