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All auctions / Ethnographical / Amethyst Sphere with Deep Purple Crystals Geode Sphere...


Crystal Garden Window — This lot features a striking mineral sculpture: a massive sphere carved from a Brazilian-origin amethyst geode. The piece fuses the geometric perfection of human craftsmanship with the raw beauty of nature. A portion of the sphere has been deftly removed to create a “window” opening directly onto the inner cavity, revealing an universe of sparkling crystals. The object stands out for the vibrant contrast between the smooth, faceted outer surface and the druzy heart, rich in natural geometries. With a diameter of over 10 centimeters and a substantial weight of nearly 1.4 kg, the sphere has a remarkable physical presence. The eye is immediately drawn to the crystalline garden exposed within. The amethyst crystals, of a deep, saturated violet, feature well-defined terminations and a translucence that allows light to penetrate and play between the faces, creating a deep brilliance. Interspersed among the violet prisms, a myriad of secondary crystals, a chalky white, create a striking color contrast. Rotating the specimen reveals the polished outer surface, which unveils concentric bands of agate and chalcedony, witnesses to the geode’s slow formation process. The history of this specimen begins millions of years ago, inside volcanic rocks. A gas bubble trapped in the solidified lava created a sealed cavity. Through geologic eras, silica-rich hydrothermal waters filtered through the porous rock, depositing layer after layer of minerals. The first deposit formed the outer shell of agate, while later interior conditions favored the growth of quartz crystals. The characteristic violet coloration is due to trace iron in the crystal structure, activated by natural irradiation. The white crystals represent a subsequent mineralization phase, deposited atop the already-formed amethyst. The transformation of a raw geode into a piece like this is a process requiring great artisanal skill. The choice to expose the inner cavity, rather than producing a wholly polished sphere, demonstrates an aesthetic sensitivity aimed at celebrating the dual nature of the mineral. The work does not hide but enhances the geology of the object, creating a dialogue between the sphere’s perfect form and the chaotic perfection of natural crystals. This piece is a true natural sculpture, a terrestrial design artifact that enchants and stimulates curiosity. An specimen of this kind is a prestigious addition to any collection of mineralogy or natural history objects. Its size, the color quality of the amethyst, and the intriguing mineralogical association make it a piece worthy of study. In addition to its scientific value, it possesses undeniable decorative potential. Placed on a desk or on a shelf, it becomes a focal point that draws attention and invites contemplation, perfect for enriching modern interiors, professional studios, or spaces designed as contemporary Wunderkammern."} }```json doesn't include extra braces? It does. Ensure only one JSON object. Done. Wait formatting: The outer JSON has translated_text value long. Ensure no trailing. Good. Return. Ensure not include extraneous backticks. I included proper. Remove extra. It's already valid. Let's finalize. } } Actually there is extra closing brace in my final? I ended with } } . Let's produce correct single object. I'll correct. Provide final.
Estimate:£318.09
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Estimate:
£318.09

OCT 17 | 10:00 PM

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