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Toutes les enchères / Ethnographie / Premium botryoidal agate sphere in the shape of a bunch...
A spectacular specimen of grape agate, a collectible jewel with a unique shape — This specimen captures attention for its extraordinary morphology, a botryoidal agate presented in a naturally spherical form, enriched by a central cavity that reveals its intricate internal structure. The exterior surface is a carpet of microcrystalline quartz spherules, varying in tones from deep purple to delicate lavender, creating a hypnotic visual effect. The botryoidal nature of this formation makes it a unique piece and highly desirable for any collector. Inside the cavity, and at times also on the outer surface, layers of green celadonite emerge, a mineral that provides a fascinating chromatic contrast and contributes to the piece’s geological complexity. These green accents blend harmoniously with the violet hues of agate, enhancing its three-dimensionality and visual depth. The presence of rare additional quartz crystals inside the cavity adds further value and sparkle, inviting close inspection. Grape agate is a form of botryoidal chalcedony (a type of microcrystalline quartz) that forms in aggregates of small spheres or clusters, from which its evocative name derives. These formations are typical of volcanic or hydrothermal regions, where silica-rich solutions slowly deposit the mineral in rock cavities. The violet coloration is often attributed to traces of iron or manganese, giving each specimen a unique оттенок. A close-up examination, perhaps with a magnifying glass, reveals a crystallized finish akin to a druse on every individual sphere, contributing to the piece’s luster and overall brilliance. This feature enhances its natural beauty, turning a simple mineral into an object of rare elegance and refinement. Its surface, grape-like in appearance, is tactile and visually intriguing, making it a focal point in any setting. This specimen specifically originates from Sulawesi, Indonesia, an area renowned for its high-quality grape agate formations. Its geographic origin adds an additional layer of interest, linking the piece to a specific geological and mineralogical context. A piece of such caliber is not only an investment for collectors but also a magnificent decorative object, capable of enriching any study, living room, or museum display, offering a glimpse into the remarkable artistry of nature. Every irregularity, small fracture, cavity, inclusion, or color variation should be considered an integral part of the natural formation and the specimen’s uniqueness, attesting to its geological origin and authenticity.
Estimation:€180
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Estimation:
€180
OCT 8 | 3:00 PM
Présentez votre vente aux enchères à des collectionneurs du monde entier !
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