
OCT 17 | 10:00 PM

All auctions / Ethnographical / Natural Polychromatic Moss Agate Obelisk - Diverse...


A rare collectible specimen that combines sculptural art and natural geology — This piece represents a finely carved obelisk, obtained from a premium selection of Moss Agate (Agata Muschiata), a microcrystalline variety of chalcedony. Its structure is intrinsically linked to the precipitation of silica in rock cavities, with subsequent infiltration of metallic oxides such as manganese, iron, and chlorite, which give rise to distinctive dendritic branching and complex color zoning. Visual analysis reveals extraordinary polychromy and a wealth of mineralogical details. The core consists of translucent chalcedony ranging from milky white to bluish gray, serving as a matrix for a wide range of inclusions. Lively greenish-dendritic branches are observed, presumably due to chlorite or hornblende, interwoven with red-brown and lavender patterns, indicating the presence of iron and manganese oxides. The combination of these inclusions creates miniature “landscapes” of notable depth and three-dimensionality. The provenance of this specimen is Madagascar, an area renowned for the production of exceptional quality and color-varied moss agates. The formation of these intricate dendritic inclusions and the color banding results from slow and complex geological processes, testifying to the interaction between hydrothermal solutions rich in minerals and the hosting silica matrix. The presence of small geode cavities, visible in some sections, adds an additional element of mineralogical interest, with quartz microcrystals reflecting light. The piece stands out for its exceptional aesthetic quality, the fruit of meticulous artisanal workmanship that has maximized the natural patterns of the mineral. The polish is flawless on all faces of the obelisk, giving a high level of luster that enhances the color contrast and the sharpness of the inclusions. The slender shape and harmonious proportions make this obelisk a focal point with a strong visual impact. The condition is excellent, with no signs of damage or restoration. The flat base ensures perfect display stability, making it ideal for exhibition in private collections, museums, or professional environments. The structural integrity of the piece and the absence of surface fractures confirm its value as a high-quality specimen preserved in its original condition. The collectible value of this obelisk is high, not only for the intrinsic quality of moss agate and its refined workmanship, but also for the uniqueness and complexity of the color and dendritic patterns. Specimens of this size, with such a rich variety of colors, multicolored dendritic formations, and small crystal cavities, are considered rare and highly desirable in the collectibles market. It represents a valuable addition to any collection of carved minerals or as an element of superb elegance and refinement in decoration.
Estimate:£143.34
To the auctionView all items fromCatawikiorEthnographical
Estimate:
£143.34

OCT 17 | 10:00 PM


OCT 23 | 8:00 AM
Bring your auction to collectors worldwide!
Get listed now