2.5 x 2 x 0.55 inches (6.35 x 5.08 x 1.42 cm)
Agate is technically a cryptocrystalline variety of silica, but it is the appearance - typically when cut and polished - that makes the material chiefly composed of Chalcedony so appealing. The fineness of grain and brightness of color result in some spectacular specimens of the variety often associated with either nodules in volcanic rocks or ancient lavas. While not the dark purple color like the incredible Amethyst from Uruguay, this tiny example from the country has a haunting dendritic look that almost looks back!
Condition report available upon request.
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