Volcano Agate

Shop our collection of Volcano Agate, a distinctive trade-name material known for its dramatic patterns, contrasting colors and striking appearance under ultraviolet light. Explore hand-selected spheres, polished pieces, carvings and one-of-a-kind specimens displaying unique bands, patches, inclusions and naturally varied formations. Select pieces reveal vivid fluorescent areas under UV light, creating a remarkable transformation between normal and ultraviolet illumination. Each piece is selected for its color, pattern, UV response and individual character. Exact Piece items are individually photographed so you can see the actual piece you're choosing (unless marked otherwise). Looking for a specific size, pattern or UV response? Contact us — we're happy to help you find the right piece.