Unakite Sphere with a Mosaic of Green Epidote and Pink...

Pink Feldspar, Green Epido te, and Quartz — This lot features a superb Unakite sphere, sourced from the rich deposits of Madagascar. The specimen has been masterfully worked and mirror-polished to achieve a perfectly spherical shape, one of the most refined expressions of lapidary art. The sphere stands out for its specific gravity and substantial dimensions, giving it a striking presence. More than a simple mineral sample, this object represents a meeting point between the power of geology and the elegance of design, a fragment of Earth’s history transformed into sculpture. Direct observation of the surface reveals a fascinating chromatic mosaic, typical of Unakite. Patches of deep pistachio green, due to the presence of epidote, alternate with warm pink-salmon hues of orthoclase feldspar. Anchoring these two dominant colors is the quartz, present in veins and translucent areas of smoky gray or milky white, which adds depth and complexity to the texture. The impeccable polish enhances the glassy brilliance of each crystal, allowing light to penetrate and play with the different mineral components. Rotating the sphere in the hands gives the sensation of exploring a small planet, with evolving geological landscapes that unfold with every new angle. Scientifically, Unakite is not a single mineral but a metamorphic rock, specifically altered granite. Its formation results from a geological process called metasomatism, during which hydrothermal fluids altered the chemical composition of the original granite. The plagioclase feldspar was transformed into epidote, giving rise to the characteristic green color, while orthoclase feldspar and quartz, more resistant to alteration, retained their structure, creating this extraordinary assemblage. The name 'Unakite' derives from the Unaka Mountains in North Carolina (USA), where it was first discovered, but high-quality specimens like this also come from other parts of the world, including Madagascar. The spherical shape is rich in symbolic meaning and collectible value. Considered an emblem of perfection, unity, and completeness, the sphere is a form with no beginning or end, allowing continuous, immersive exploration of the material. Its realization requires notable artisanal skill to achieve a perfectly smooth surface and absolute geometric balance. This Unakite sphere thus becomes almost a contemplative tool, an object inviting tactile and visual observation, revealing the hidden beauty within the rock. As a decorative piece, this specimen has great impact. Its natural color palette, evoking mosses and rocks, harmonizes with both classical and modern contexts. It is an ideal piece to enrich a library, a study, or a living room, acting as a focal point that stimulates curiosity and conversation. For a mineral collector or a natural history enthusiast, it represents a prestigious addition to a contemporary Wunderkammer, combining the scientific fascination of a metamorphic rock with the undeniable aesthetic value of a natural work of art. Technical details Name: Unakite Classification: Metamorphic rock (altered granite) Provenance: Madagascar Dimensions: 86 x 86 x 86 mm Weight: 920 g Conditions: Natural, sphere-worked and polished. Base not included.

估價:$167.34

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