Bring your auction to collectors worldwide!
Get listed nowBy subscribing, you are agreeing to the privacy policy. Unsubscribe anytime.
Barnebys HQ
Brahegatan 10
BOX 5038
114 37 Stockholm
All auctions / Ethnographical / Polished geode slice with a sparkling central druzy...
Gorgeous Brazilian Agate, handcrafted wood and brushed steel base — This specimen represents a carefully polished section of an Agate geode, a mineral composed of microcrystals of quartz (chalcedony) arranged in concentric layers within rock cavities. The geological formation of agate is a slow and complex process that typically occurs in volcanic or sedimentary rocks, where silica-rich solutions gradually precipitate, creating the characteristic bands and the central crystalline cavity. The piece qualifies as a magnificent example of primary cryptocrystalline quartz formation. Visually, agate displays a superb range of hues from pale sky blue to milky white, interspersed with thin concentric bands that delineate the gradual growth of the mineral. The translucency of chalcedony allows light to interact with the stratifications, enhancing their depth and structure. The core of the section reveals a sparkling druse of macroscopically large quartz crystals, oriented toward the center, reflecting light with an ethereal brilliance, a fascinating contrast with the smooth, velvety surfaces of the agate bands. The origin of this specimen is traceable to Brazil’s rich agate deposits, particularly from regions renowned for producing high-quality agate. These areas are celebrated for their unique geological conditions that favor the formation of geodes with well-defined bands and crystalline cavities. Brazilian provenance is a guarantee of excellence, recognized worldwide for the beauty and variety of its agates. The aesthetic quality of this lot is exceptional, characterized by color harmony and the sharpness of the bands. The flawless surface polishing reveals every detail of the internal structure, while the central druse adds a touch of sparkle and depth. The section has been skillfully cut to maximize the exposure of its natural features, making it a piece of great visual impact. The mineral is presented on an artisanal display base, consisting of an elegant teak wooden pedestal and a brushed steel support. This combination not only provides stability and protection but also elevates the specimen into a decorative art object, seamlessly integrating into any high-end environment. The condition is natural and pristine, with no alterations or treatments that would compromise its original integrity. This piece is a valuable addition to any mineral collection, both for its intrinsic geological merit and for its refined presentation. The combination of renowned origin, distinctive crystalline formation, and meticulous aesthetics makes it a desirable specimen, particularly prized by collectors seeking unique objects that combine natural beauty with artisanal sophistication. Its presence stands as a tribute to the majesty and diversity of the mineral world.
Estimate:£144.4
To the auctionView all items fromCatawikiorEthnographical
Estimate:
£144.4
OCT 17 | 10:00 PM
Bring your auction to collectors worldwide!
Get listed now£7.6
