Mystery Thunderegg Slab - Old Stock Oregon cabochon rough cutting This is a beautiful Bruneau

This is a beautiful Bruneau Jasper slab from an old stock collection

Stromatolites are among the oldest known fossils on Earth

but it is actually a fossil stromatolite

Measurements (inches - longest - approx): 4 x 2 x

• Dimensions: 79mm x 72mm x 6mm (Inches - 3

Mystery Thunderegg Slab - Old Stock Oregon cabochon rough cutting This is a beautiful BruneauMystery Thunderegg Slab Unknown Location Old Stock Oregon This intriguing old stock slab comes from an unknown Oregon thunderegg location, though it more than likely originated from the Ochoco Mountains based on characteristics. Mystery stones offer collectors the excitement of research and potential identification, making this piece both a beautiful specimen and an investigative opportunity for Oregon thunderegg enthusiasts. SPECIFICATIONS Material: