Septarian Sphere Art and patterns over the colorful

and patterns over the colorful backgrounds

and targets

you can build a friendly sabertooth tiger

including a track to walk around

Septarian Sphere Art and patterns over the colorfulThis sphere is carved from septarian, a unique rock formed from a combination of minerals including calcite, aragonite, and limestone. Septarian nodules develop when mineral rich mud cracks and fills with calcite or aragonite over millions of years, creating striking patterns of yellow, brown, and gray. Why you'll love this: Material: Septarian (limestone with calcite and aragonite) Size: Approximately 2 to 2. 5 inches in diameter Appearance: Polished