C919 Interi Geodes are formed as gas

Geodes are formed as gas bubbles within volcanic lava

Chalcedonian rosettes are rare

The Herkimer diamond sits atop and is embellished with mica foliage

Gem quality green Tourmaline in matrix on a Lucite base

The mirror is antique

C919 Interi Geodes are formed as gasPetrified wood decorated with a chalcedonian rosette and hemimorphite on a lucite base. Chalcedony is named after the ancient seaport of Chalcedon. The crystal aggregates consist of sphericalrosettes with jutting pointed crystals. It is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. Chalcedonian rosettes are rare, and information alone is hard to come by. Size: 11" high x 4" wide x 4" deep