Porta la tua asta ai collezionisti di tutto il mondo!
Pubblica oraIscrivendoti, accetti la politica sulla privacy. Annulla l'iscrizione in qualsiasi momento.
Barnebys HQ
Brahegatan 10
BOX 5038
114 37 Stockholm
Tutte le aste / Etnografia / Fossilized Agatized Dinosaur Bone Sphere Rare Jurassic...
Magnificently preserved dinosaur bone fossil that has been cut and polished into a sphere — This specimen represents a fragment of Jurassic dinosaur bone, meticulously agatized and transformed into a smooth sphere. Agatization is an exceptional geological process in which the original organic matter of the bone is slowly replaced by microcrystals of quartz (agate or chalcedony), preserving with incredible detail the cellular structures and the microarchitecture of the bone that would otherwise be lost. The Jurassic provenance gives this relic an estimated geological age of about 145-200 million years, making it a deeply ancient piece of paleontological history. Visually, the surface of the sphere reveals a complex network of textures and colors typical of fossilized agatized dinosaur bone. Predominant tones are brown, beige and reddish-gray, with lighter shades outlining the internal trabecular structure of the bone, known as osteons. The luster is delicately silky, enhancing the three-dimensionality of the intricate patterns. A close-up analysis allows appreciation of the extraordinary preservation of microscopic details, now mineralized and made eternal by silica. Geologically, this bone comes from Jurassic deposits of Morocco, a region famous for its paleontological richness. The specific formation in which it was found provided ideal conditions for agatization: waters rich in silica permeated and silicified the pores and channels of the buried bone. This permineralization process not only preserved the external shape but also the complex internal morphology, offering a unique window into the biology of dinosaurs of that era. The aesthetic quality of this sphere is high, with excellent smoothing that highlights the natural pattern of the fossilized bone. Its spherical shape is not only aesthetically pleasing but also maximizes the visibility of the patterns from every angle, turning a scientific relic into a natural art piece. Despite its antiquity, the piece is in remarkably good condition, with no obvious signs of degradation or significant restorations that would compromise its integrity or authenticity. This specimen is particularly interesting for fossil and mineral collectors, as it combines the rarity of an authentic paleontological relic with the beauty and workmanship of a polished mineral. The combination of geological history and prehistoric biology, together with the mineral transformation, makes it a miniature museum piece. Its presence in a collection adds a scientific and aesthetic dimension, representing a bridge between the mineral world and the biological world. The sphere’s size and weight are substantial for a display piece, making it a focal point in any showroom. Its internal reference label, WER-957 (formerly DAD-651), ensures detailed traceability and an additional guarantee of authenticity for the discerning collector.
Stima:€250
Vai all’astaVedi tutti gli oggetti diCatawikioEtnografia
Stima:
€250
![[EXPOSITION — ART PRÉCOLOMBIEN]. — Art précolombien du Mexiq - Lot 16](https://bbys.imgix.net/3696/b519c06a7d60ab1d06569a9d8cbd76d0d5b9fa8d8827af22307153052be1674e.webp?auto=format&w=3840&q=75)
[EXPOSITION — ART PRÉCOLOMBIEN]. — Art précolombien du Mexiq - Lot 16
09/27/2026
€22
Stima: €15
Porta la tua asta ai collezionisti di tutto il mondo!
Pubblica ora
