Football agate is a variety of chalcedony formed when silica-rich fluids fill cavities within volcanic rock. Variations in mineral content during formation create contrasting bands, inclusions, and occasional crystal-lined openings that remain visible after polishing.

This polished football agate sphere displays deep gray chalcedony accented by striking red mineral inclusions and multiple natural druzy-lined cavities. Areas of translucent agate reveal subtle internal banding, while exposed crystal pockets add texture and depth across the surface. Under ultraviolet light, portions of the agate fluoresce a vivid green, highlighting internal structures not readily visible under normal lighting.

Selected for its strong color contrast, natural crystal exposure, and UV-reactive character, this specimen presents a distinctly geological appearance from every angle.

Details:

Football agate

Approx. 3.2" diameter

Polished sphere

UV reactive (green fluorescence)

Natural druzy cavities and internal features present

Natural variations in color, banding, and mineral inclusions

Acrylic display stand included

A substantial display specimen well suited for a cabinet of curiosities, mineral collection, or ultraviolet mineral display.

You will receive the exact piece shown.