Exclusive Agate Geode with Drusy Quartz "Jewelry Box"...

Imposing Natural Casket Over 14 kg — A striking Agate Geode from Brazil, a large and heavy specimen transformed into an object of rare beauty and functionality. The original volcanic rock was carefully sectioned and polished to create an elegant casket, with the upper portion serving as a lid. The piece reveals the duality of the mineral: a sober, smooth outer crust that opens to reveal a hidden crystalline universe, a true geological treasure chest. The geode’s exterior has been mirror-polished, highlighting a dark, deep surface, almost black, traversed by veining and inclusions that testify to its complex geological history. The form is massive and organic, preserving the nodular volcanic shape. When closed, the object presents as an abstract natural sculpture, mysterious and self-contained. Lifting the lid reveals a chromatic and structural spectacle. The clean cut exposes the concentric bands typical of Agate, a faithful record of the slow mineral-deposition process. Layers of chalcedony alternate in a dance of colors: from milky white to translucent gray, from warm caramel tones to thin orange and brown lines. The lines follow a festooned and bottiform pattern, creating a hypnotic design that guides the eye toward the geode’s heart. The cavity’s center is a triumph of light. A sparkling carpet of Drusy Quartz, composed of countless white microcrystals, entirely covers the internal surface. Under light, these tiny crystals reflect and refract the rays, producing a striking “rock sugar” effect. In some spots, as visible in the photos, the crystalline surface is speckled with darker inclusions, which add further complexity and mineralogical interest to the specimen. The geode’s genesis dates back millions of years, inside volcanic rocks. A trapped gas bubble in the cooling lava created the initial cavity. Subsequently, for a geologically long time, silica-rich hydrothermal waters filtered through the porous rock. Slowly, layer after layer, silica deposited on the interior walls of the cavity, crystallizing as microcrystalline chalcedony and giving life to the Agate bands. The central cavity, not completely filled, ultimately allowed the growth of Quartz crystals, the final phase of this extraordinary natural process. Weighing over 14 kilograms and of substantial dimensions, this specimen is not just a mineral but a showcase piece of great value. Its transformation into a casket makes it a unique object, capable of combining the scientific interest of a Wunderkammer with practical and elegant function. It is ideal as a jewel box, a keeper of small precious items, or simply as a focal decorative piece in a study, library, or design environment. Its imposing presence and the hidden beauty make it a symbol of nature’s power and artistry, a conversation piece sure to fascinate anyone who observes it. Technical details Name: Agate with Quartz Classification: Mineral, variety of Chalcedony (Quartz) Provenance: Brazil Dimensions: 321 x 274 x 158 mm Weight: 14400 g Conditions: Natural, sectioned and polished. Natural internal fractures and small surface irregularities are intrinsic characteristics of the specimen. Treatments: None known. The cutting and polishing are mechanical work.

Estimation:€2,000

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