Agate slice with crystallized heart from Brazil

This slice of agate, extracted from Brazilian deposits, is distinguished by its delicate nuances ranging from warm brown to brilliant white, with a crystallised core that immediately catches the eye. Its carefully polished edge reveals harmonious concentric layers, typical of agates formed in volcanic cavities.
The entirely crystallised heart of this piece is the result of a rare natural phenomenon: during its formation, certain cavities are not completely filled with silica, allowing quartz crystals to grow in the remaining spaces. These crystals add a sparkling texture and contrast with the regular bands of agate, offering a rich and fascinating visual experience.
Mounted on a brass base, this agate slice reveals even more detail when illuminated, playing subtly with the transparency and reflections of its crystals.