Tumbled Turritella Agate / 1-1.5" AVG - 1 LB. LOT Menu Tektites which give the crystals a

which give the crystals a rainbow metallic sheen

some of which may contain natural materials enhanced by heat treatment

Chrysocolla forms when copper ore oxidizes and incorporates varying amounts of silica while growing

Green Agate Star on Metal Base

Tumbled Turritella Agate / 1-1.5" AVG - 1 LB. LOT Menu Tektites which give the crystals aQuantity: 1 pound Average size range: 1 to 1. 5 inches Agate is a banded variety of chalcedony that forms inside pockets of metamorphic and volcanic rock, with the initial layer that forms and the surrounding minerals and conditions affecting subsequent layers and giving agate its wide variation in appearance. Turritella agate's unique appearance comes from the inclusion of snail fossils in the stone.