Really unique fossil specimen - wonderful pair of black pyritized ammonite. - Fossil fragment - Speetoniceras sp. - Ulyanovsk, Volga River - Russia - 340 mm - 310 mm
Opens 22 December
Starting bid
€ 1
Add to your favourites to get an alert when the auction starts.
Catawiki Buyer Protection
Your payment’s safe with us until you receive your object.View details
Trustpilot 4.4 | 122986 reviews
Rated Excellent on Trustpilot.
Description from the seller
Ammonite Speetoniceras, very rare.
The specimen stands out not only for its remarkable size, measuring 34 cm in diameter, but especially for the beauty of its fossilization.
The pyritization of animal tissues requires the presence of several concomitant conditions, such as the initial decomposition process carried out by anaerobic bacteria that produces a quantity of sulfur, whose subsequent reaction with ferrous materials initiates the oxidation process leading to the final pyritization of the organism's soft tissues.
The beauty of this cross-sectioned ammonite also lies in the exceptional pairing, extremely elegant, between the gold color of pyrite and the black background, which is very rare compared to the shades of brown we are more commonly used to.
A stunning piece of furniture that will add luster and decor to any environment in which it is placed.
Curiosity: in one of the two slices, it is possible to find the inclusion of a small Orthoceras.
Single slice size: approximately 340 x 310 x 45 mm.
Weight: 10,400 g
Seller's Story
The Mineral Art Gallery offers minerals, fossils, shells and natural elements.
Born in Italy in 2017, today she collaborates with international galleries and collectors, she is a direct importer of large minerals and naturalistic collectible elements; deals with the processing to insert them inside the living space. A section of the gallery was dedicated to the Wunderkammer, "chamber of wonders or cabinet of curiosities" in which Mirabilia elements are presented: naturalia and italiania, a union between "the present is the past".
All lots are shipped via DHL Express and Fercam couriers, with insured parcel and tracking.
Translated by Google TranslateAmmonite Speetoniceras, very rare.
The specimen stands out not only for its remarkable size, measuring 34 cm in diameter, but especially for the beauty of its fossilization.
The pyritization of animal tissues requires the presence of several concomitant conditions, such as the initial decomposition process carried out by anaerobic bacteria that produces a quantity of sulfur, whose subsequent reaction with ferrous materials initiates the oxidation process leading to the final pyritization of the organism's soft tissues.
The beauty of this cross-sectioned ammonite also lies in the exceptional pairing, extremely elegant, between the gold color of pyrite and the black background, which is very rare compared to the shades of brown we are more commonly used to.
A stunning piece of furniture that will add luster and decor to any environment in which it is placed.
Curiosity: in one of the two slices, it is possible to find the inclusion of a small Orthoceras.
Single slice size: approximately 340 x 310 x 45 mm.
Weight: 10,400 g
Seller's Story
The Mineral Art Gallery offers minerals, fossils, shells and natural elements.
Born in Italy in 2017, today she collaborates with international galleries and collectors, she is a direct importer of large minerals and naturalistic collectible elements; deals with the processing to insert them inside the living space. A section of the gallery was dedicated to the Wunderkammer, "chamber of wonders or cabinet of curiosities" in which Mirabilia elements are presented: naturalia and italiania, a union between "the present is the past".
All lots are shipped via DHL Express and Fercam couriers, with insured parcel and tracking.
Translated by Google TranslateDetails
Specimen
Really unique fossil specimen - wonderful pair of black pyritized ammonite.
Scientific name
Speetoniceras sp. - Ulyanovsk, Volga River - Russia
Country of Origin
Russia
Geological Period
Cretaceous, Lower (145 - 100.5 million years)
Condition
Natural
Weight
10.4 kg
Height
340 mm
Width
310 mm
Depth
90 mm
Sold by
