Blue Uruguay Sodalite Slab! Lapidary Stone Slab! Coquina Fireworks Obsidian also goes by

Fireworks Obsidian also goes by the name of Flower Obsidian

and it appears hard enough to take at least a matte polish

making it the perfect (and historically) material for Arrowheads

Some of the last we'll ever have

Blue Uruguay Sodalite Slab! Lapidary Stone Slab! Coquina Fireworks Obsidian also goes bySodalite is a well renowned blue tectosilicate lapidary material! It gets its name due to its high sodium content. It tends to work into great cabochons, and takes a great polish. It has historically been mistaken for Lapis Lazuli, due to the bright blue contrast both stones can have. Measurements (inches longest approx): 3. 6 x 2. 9 x . 24 The last photo has been taken dry so that you may see any defects. The other photos have been taken wet to