Large Polished Quartz Breccia Obelisk A Sculpture Carved...

A magnificent monolith with ochre colors and geodes of crystal — An imposing obelisk carved from a single, massive block of silicified quartz breccia sourced from Brazil. This specimen stands out for its remarkable size and its incredible visual impact, making it a true natural sculpture. Its slender, soaring shape and the mirror-polished surface highlight its complex geological structure, transforming it into a highly prized decorative and collectible piece. Close observation of the surface reveals the material's breccia nature: a fascinating mosaic of angular rock fragments (clasts) captured and cemented by a silica matrix. Clasts in warm ochre tones, mustard yellow, and Rust brown seem to float in a dark gray to almost black binder, creating a powerful and dynamic color contrast. Delicate veins of white milky quartz traverse the composition, adding further levels of detail and testifying to the complex fracturing and re-cementation processes. The workmanship has skillfully preserved some small natural cavities, or vugs, that open on the glossy surface like secret windows. Inside these pockets, one can admire the sparkling growth of druzy quartz microcrystals, whose raw brilliance creates a suggestive material dialogue with the smooth, polished faces of the obelisk. These details are not imperfections, but precious testaments to the mineral's formation process, deliberately left visible to enrich the specimen. This breccia tells a geological story spanning millions of years. It formed as a result of a tectonic or hydrothermal event that shattered the preexisting rock. Subsequently, silica-rich fluids (SiO₂) percolated through these fractures, filling the voids and acting as a powerful natural cement that welded the fragments together. The different colorations are due to the presence of various iron oxides and hydroxides (such as goethite or hematite for the warm tones) and other mineral inclusions in the siliceous matrix. For its iconic shape, substantial dimensions, and extraordinary geological aesthetics, this obelisk qualifies as a high-value decorative and intellectual object. It is an ideal piece to enrich a library, a professional study, or a contemporary design interior, where it can serve as a focal point for conversation. At the same time, it represents a magnificent specimen for a modern Wunderkammer or for a natural history collection, embodying the power and creativity of Earth’s processes in an elegant, sculptural form. Technical details Mineral: Silicified Quartz Breccia Type: Carved Obelisk Provenance: Brazil Dimensions: 290 x 110 x 70 mm Weight: 3183 g Condition: Natural, worked and polished. Presence of geodes and natural cavities.

Estimation:€750

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