POL108JR Polyhedroid Agate Specimen Gemstone Tree Discover the exciting world of

Discover the exciting world of Geology through this interactive Rocks & Minerals kit

A polished specimen featuring red and dark blue-gray agate with a vugg

Rough Rock

Polished Agua Nueva Agate specimen featuring red and orange banding with golden brown moss agate and a vugg

POL108JR Polyhedroid Agate Specimen Gemstone Tree Discover the exciting world ofThis is a polished specimen featuring gray and blue gray agate with speckles of yellow. It has a few black ribbon bands and small black dendrites, and one large dendrite tree coming from the edge into the agate. 17. 2 cm x 16 cm, between 27 mm 4 mm thick 1 lb 2. 8 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