Septarian Sphere Flashcards A thoughtful gift for butterfly

A thoughtful gift for butterfly enthusiasts

- 4 board books

A striking accessory for insect enthusiasts

Challenge booklet provides puzzles for independent learning and skill building

Septarian Sphere Flashcards A thoughtful gift for butterflyThis 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