POL118JR Polyhedroid Agate Specimen From Mexico 50 to 70 million years

50 to 70 million years ago when the Gulf of Mexico reached what is now Southern Utah

Its pair is MRC322JR

33mm x 41mm

by Stewart M

POL118JR Polyhedroid Agate Specimen From Mexico 50 to 70 million yearsThis is a polished specimen featuring shades of blue gray agate, white, and yellow banded agate, with an opening in the center, a band of quartz crystal, yellow plumes, and a healed partial fracture with yellow staining. 16. 3 cm x 13. 8 cm x 9. 5 cm 6 lb 15. 2 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