Birdseye Rhyolite Slab - Dominant Purple with Orbicular Eyes Ammonite This chunk of Dinosaur Bone

This chunk of Dinosaur Bone appears to have some silica and calcite present

The wavy orb pattern adds flowing movement that will create exceptional statement cabochons

It generally takes a quality polish and works into designer-grade cabochons

Apple Valley Jasper Slab - Wavy Stromatolites with Hematite - Sahara Morocco

magnetite-based velvet textures

Birdseye Rhyolite Slab - Dominant Purple with Orbicular Eyes Ammonite This chunk of Dinosaur BoneBirdseye Rhyolite Slab Dominant Purple Coloration Old Stock Original This old stock original Birdseye rhyolite displays dominant purple tones with the distinctive orbicular eye patterns that give this material its name. The slab is mostly solid with excellent cabbing potential, representing exhausted Mexican deposits from vintage collections. SPECIFICATIONS Material: Natural Birdseye Rhyolite Dimensions: 100mm x 65mm x 6mm (Inches 3. 9" x 2. 6" x 0.