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 / Exquisite Natural Malachite Sphere Dynamic and Concentric...
Elegant polished specimen from the mineral-rich heart of Africa — This magnificent sphere of malachite, carved from a single block from the Congo, represents an extraordinary beauty and gemmological interest. The Congo is universally recognized for the superior quality and color intensity of its malachite, and this piece is eloquent testimony to that. Precision work has transformed the raw ore into a glossy sphere, designed to maximize the depth of color and the complexity of its internal structures, making it a visually and tactilely striking object. The surface of the sphere is a true masterpiece of nature, where two distinctive morphologies merge. In some areas the classic concentric bands, fluid and stratified, predominate, drawing sinuous patterns of various green tones. In other sections, particularly in the part that in the images appears to be the underside, a rich botryoidal texture manifests itself, characterized by globular, compact aggregates that create a bubble-like or cluster-like effect. The transition point between these two growth types is particularly fascinating, offering a visible and detailed geological narrative of the mineral's formation. The color tones range from deep, intense green, almost emerald, to lighter and almost translucent shades, creating natural contrasts that highlight the mineral's growth in an oxidative environment. These color transitions are not merely aesthetic elements but reflect the different chemical-physical conditions that characterized copper carbonate deposition. The presence of small natural voids and slight granular variations is an authentic testimony to the geological processes and the natural growth of the mineral, elements that attest to its originality and non-manipulation. Malachite is a basic copper carbonate that forms in the oxidation zones of copper ore deposits, where copper-ion-rich solutions react with carbon dioxide and water. Its distinctive botryoidal and banded structures are the result of slow and steady growth processes, in which the mineral is deposited layer by layer. The alternation of different solution compositions and environmental conditions during crystallization generates the chromatic and structural variations that make each malachite specimen unique. This piece is not just a mineral, but an open window into the geological processes that have shaped the Earth’s crust for millions of years. This specimen is ideal for mineral collectors who appreciate natural beauty and structural peculiarities. Beyond its collector value, the malachite sphere has a strong aesthetic impact, making it an exceptional decorative element. Perfect for enriching a study, a library, a gallery, or to integrate into a contemporary interior, this sphere draws the eye and invites careful observation, serving as a focal point of elegance and natural mystery. Its readability of the internal structures also makes it an excellent educational tool for anyone interested in mineralogy. Technical details Name: Malachite Classification: Basic copper carbonate Provenance: Congo Dimensions: 61 mm (diameter) Weight: 390 g Material: Natural malachite Conditions: Natural Treatments: Only cutting and polishing
Estimate:£153.03
To the auctionView all items fromCatawikiorEthnographical
Estimate:
£153.03
OCT 17 | 10:00 PM
Bring your auction to collectors worldwide!
Get listed now£1,441.18
