Prineville Herringbone Petrified Wood Cut and Proven - Black Herringbone Pattern jewelry making impressive Septarian Nodules are round formations

Septarian Nodules are round formations where organic fossils were consumed by bacteria and replaced with calcite

White “peanut” tunnels are natural fossil features

It often features many colors and works into some genuinely amazing cabochons

or polishing

Prineville Herringbone Petrified Wood Cut and Proven - Black Herringbone Pattern jewelry making impressive Septarian Nodules are round formationsCut and proven Prineville Herringbone Petrified Wood showing some of the great black herringbone pattern that made this material an Oregon classic. From near Prineville, Oregon. This piece has room for more slabs, and would make neat cabs if bleached to expose the herringbone pattern in its full display. SPECIFICATIONS Material: Natural Prineville Herringbone Petrified Wood Dimensions: 100mm x 81mm x 60mm (Inches 3. 9" x 3. 2" x 2. 4") Weight: 599