Extraordinary sphere carved from a top-grade amethyst Amethyst sphere with internal calcite – polished natural geode - Height: 230 mm - Width: 230 mm- 12300 g

This extraordinary sphere has been carved from a high-quality natural amethyst geode, partially exposing the interior cavity covered by a rich formation of deep purple crystals. The polished surface of the sphere contrasts beautifully with the open area of the geode, where amethyst crystals intertwine with a central orange calcite crystal, creating a visually striking dialogue between two minerals formed in perfect symbiosis.
Amethyst is a variety of quartz whose violet coloration is due to traces of iron and exposure to natural radiation over millions of years. It typically forms in volcanic environments, when silica-rich hydrothermal solutions penetrate rock cavities and crystallize slowly, giving rise to classic geodes lined with points. In this specimen, the process led to co-crystallization with calcite, which subsequently developed under slightly different chemical conditions, endowing the sphere with a dual aesthetic and scientific significance.
The inside of the geode reveals a dynamic combination of transparent purple amethyst and pink calcite, both with well-defined crystal forms. This contrast of colors and structures makes every corner of the sphere unique and fascinating, highlighting the natural beauty of the raw mineral and the craftsmanship of the artisanal work.
Perfect as a decorative element of prestige or as a collectible piece, this sphere represents a rare example of geological harmony, mineral energy, and aesthetic beauty. An object destined to evoke wonder, ideal for refined environments or to enrich high-level mineralogical collections.