Black Banded Agate Sphere

About 0.75 inches in diameter. The Black Banded Agate Sphere offers a striking visual of nature’s layering and geological time in a polished, display-ready form. Carved from genuine banded agate, a variety of chalcedony in the quartz family, it features bold black and white bands that reflect the way fluids and minerals alternately deposited in rock cavities over time. It is a great piece for a desk, shelf, or learning space where it can spark curiosity about how rocks and minerals form. Why you’ll love this product: Formed from authentic banded agate, showcasing true geology: alternating layers of silica and trace minerals that give the banding effect. Polished into a spherical shape, the bands wrap around smoothly, offering a 360° view of natural internal patterns—a tangible way to explore mineral layering. The high-contrast black and white banding makes it both visually compelling and scientifically interesting, inviting questions about mineral inclusions, crystal growth, and rock