Psilomelane Marcasite Slab - Metallic Plume with High Contrast Banding fracture expect treatment World-famous Phillip Stephenson material from

World-famous Phillip Stephenson material from remote Idaho mountains

They are more closely related to a living octopus

This piece has excellent cabochon potential or could make a magnificent display of this rare obsidian form

or collector value

San Carlos Agate Rough – Light Golden Moss with Red – Plume-Like Structures

Psilomelane Marcasite Slab - Metallic Plume with High Contrast Banding fracture expect treatment World-famous Phillip Stephenson material fromPsilomelane Marcasite Slab metallic plume rare manganese oxide material This beautiful Psilomelane Marcasite slab shows off some of the great metallic plume this material is known for. This one looks like it will be a great cab or an awesome display, with striking contrast between the jet black base and bright metallic banding. SPECIFICATIONS Material: Natural Psilomelane Marcasite Dimensions: 100mm x 69mm x 7mm (Inches 3. 9" x 2. 7" x 0. 3") Weight: