POL132JR Polyhedroid Agate Specimen Spheres Marcasite in Quartz material is

Marcasite in Quartz material is a fun and sturdy cut

Primarily all whole nodules

The rough nodules usually have a bumpy exterior

They are pseudomorphic formation of agate

POL132JR Polyhedroid Agate Specimen Spheres Marcasite in Quartz material isThis 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