Eagle Rock Plume Agate Rough - Black Marcasite Old Stock picture jasper variety Weight: Approx: 11

Weight: Approx: 11

being from a formation that dates back to the Jurassic period

Lapidary artists love this material for its ease of cutting and eye-catching designs

making old stock material the only source for these world-class thundereggs

They are a great starter collection fossil for children

Eagle Rock Plume Agate Rough - Black Marcasite Old Stock picture jasper variety Weight: Approx: 11Eagle Rock Plume Agate Rough in the black marcasite variety, from the original Bill Quach collection of Central Oregon old stock. With this variety, look for the white inclusions visible from outside, which typically reveal black marcasite plume and often blue agate with marcasite running through it. A true old stock cutter from Prineville area history. SPECIFICATIONS Material: Natural Eagle Rock Plume Agate Dimensions: 114mm x 68mm x 52mm (Inches 4.