Amethyst Geode with Calcite Crystal. Uruguay. ...

Description

Amethyst Geode with Calcite Crystal
Uruguay

This extraordinary and enormous Uruguayan Amethyst Geode reveals a breathtaking interior lined with countless gem-quality Amethyst crystals, their deep violet tones embodying the richness and saturation for which Uruguay's deposits are world-renowned. At its heart lies a superbly formed Calcite crystal, measuring approximately 10 x 5.5 x 5 inches (25 x 14 x 13 cm), a rare and elegant contrast to the surrounding sea of Amethyst points. Distinguished by its dramatic, cave-like aperture, the geode invites the viewer into a natural cathedral of crystalline beauty. The outer edges have been expertly polished to reveal the delicate concentric bands of Agate encasing the interior, a testament to the slow geological artistry that formed it. Geodes of this caliber originate within volcanic vugs-hollow cavities created by ancient gas bubbles within solidified lava. Over countless millennia, mineral-rich hydrothermal fluids percolated into these voids, depositing layers of Silica and Iron that crystallized under immense heat and pressure to form the Amethyst's luminous purple hue.

Weighing an impressive 877 kilograms (1,933 pounds), nearly one full ton, the specimen exemplifies the finest quality of Uruguayan Amethyst, renowned among collectors for its exceptional depth of color, clarity, and aesthetic balance. A masterpiece of natural sculpture, this represents both geologic grandeur and gemological perfection-an extraordinary centerpiece for even the most discerning collection.
Measurements: 44.00 x 36.00 x 36.00 inches (111.76 x 91.44 x 91.44 cm)

Provenance: Property of a Distinguished Southern California Collector

More Information: All items are offered "as is." While every effort has been made to accurately describe each lot, certain pieces—particularly fossils, minerals, and carvings—may exhibit minor imperfections, repairs, restorations, or natural wear consistent with age, excavation, or handling. Prospective buyers are encouraged to carefully review photographs and descriptions and to request additional condition information prior to bidding.


Estimate: $20,000 - up.

*Heritage Auctions strives to provide as much information as possible but encourages in-person inspection by bidders. Statements regarding the condition of objects are only for general guidance and should not be relied upon as complete statements of fact, and do not constitute a representation, warranty or assumption of liability by Heritage. Some condition issues may not be noted in the condition report but are apparent in the provided photos which are considered part of the condition report. Please note that we do not de-frame lots estimated at $1,000 or less and may not be able to provide additional details for lots valued under $500. Heritage does not guarantee the condition of frames and shall not be liable for any damage/scratches to frames, glass/acrylic coverings, original boxes, display accessories, or art that has slipped in frames. All lots are sold "AS IS" under the Terms & Conditions of Auction.