Septariian or Lightning Stone from Lake Michigan handcrafted into a cabochon. Stone cabochons are gemstones which have been shaped and polished as opposed to faceted. The resulting form is usually a convex (rounded) front with a flat reverse. Stone cabochons are utilized by jewelry artists and designers to create unique wearable art. This unique, natural Lake Michigan Septarian Cabochon will give your stone jewelry designs a unique, high-quality appearance making it a one-of-a-kind treasure!