POL107JR Polyhedroid Agate Specimen From Africa and is surrounded by howlite

and is surrounded by howlite and black onyx

This book is full of interesting observations and genetic proposals of a great variety of situations that can be found within an agate

Included with purchase:

Pepto-Bismol

and mauve banded agate

POL107JR Polyhedroid Agate Specimen From Africa and is surrounded by howliteThis is a polished specimen featuring shades of blue gray and white banded agate floating among quartz. It has six sides (including the front polished face), with two edges having exposed quartz. 13. 5 cm x 4 cm x 7. 2 cm 9. 3 oz Polyhedroid Agates were found in Paraiba, Brazil, but are now unavailable. They are pseudomorphic formation of agate, forming in the negative space between large crystals of calcite or aragonite. They uniquely feature