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 formation.
• Suitable for a variety of users—geology students, STEM educators, hobbyists, or anyone with a curious mindset about Earth and material science.
• Functions as both decorative and educational: it elevates a space while also putting a natural science object on display that can prompt further exploration and learning.

Bring this exceptional sphere into your space and let it inspire discovery of Earth’s deep time and mineral secrets.