POL641 Polyhedroid Agate Tigereye Good for end stages of

Good for end stages of grinding cabochons or small specimens and smoothing the curve of the stone to prime for polishing

and shows both banded and moss agate

First is from top US agate collector Pat McMahan

23mm x 40mm

15cm x 7cm polished surface

POL641 Polyhedroid Agate Tigereye Good for end stages ofThis polished Polyhedroid Agate specimen features crystalline filling with a small open vug in the center. Dimensions: 4. 8cm x 3cm (2. 5cm deep) Weight: 1. 8oz Polyhedroid Agates were found in Paraiba, Brazil, but are now unavailable. They are a unique formation of agate, featuring naturally flat surfaces at a variety of different angles. They are believed to have formed in the negative spaces between large crystal blades of calcite or aragonite, and