Rio Grande do Sul, Brazil

Dimensions (H x W x D)

27 x 20 x 11 cm


Description & Provenance

Agate is a variety of silica known as “chalcedony,” easily recognized by its distinct banding. It has historically been a common material for carving and was used by a number of ancient civilizations. Typically, agate forms in nodules which must be cut open in order to reveal the hidden beauty inside. Often the halves or slices of the nodules must also be polished to show their greatest potential. Though some geologic locations may produce specimens that are similar to each other, exhibiting similar colors or color combinations, each and every agate is singular in its banding and design. When agates form, the inside of the nodule is often hollow, allowing other minerals to crystallize within, commonly quartz or calcite. In certain locations, those quartz crystals have trace amounts of iron (Fe) that color them purple, and effectively amethyst. When one sees this agate and amethyst geode, the first word that often comes to mind is “vivid.” The distinct blue and white banding is pronounced and exceptionally well-saturated with color, making this a mineral that easily catches the eye from across the room. Though the banding can seem as perfectly formed as something made by man, it is completely natural. Inside the cavity of this nodule is a layer of small amethyst crystals in a light purple tone that is speckled with darker concentrations of purple throughout. The amethyst is well formed, with smooth, lustrous faces that shimmer in the light. The wonderful, textural contrast provided by the sharp amethyst and the smooth, polished edges of the agate is an aesthetically pleasing combination.

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