POL132JR Polyhedroid Agate Specimen Spheres silver plumes of marcasite that

silver plumes of marcasite that catch the light as it moves

5cm x 2cm x 3cm

with a mostly flat base

and white banding with mossy patterning and a dark

30mm x 35mm

POL132JR Polyhedroid Agate Specimen Spheres silver plumes of marcasite thatThis polished Polyhedroid Agate specimen features alternating bands of quartz and banded agate in shades of light blue and grey, black, and translucent yellow, which opens to a vug in the center. 6. 1cm x 5. 2cm polished surface, 5cm deep 6. 7oz Polyhedroid Agates were found in Paraiba, Brazil, but are now unavailable. They are a pseudomorphic formation of agate, believed to have formed in the negative space between large crystals of calcite or