Mined from: Mahajanga Province, Madagascar

Era: Mid-Cretaceous, Mesozoic
Geological Age: 100 to 113 mya

Description: This Douvilleiceras ammonite fossil from Madagascar has been polished and carved to bring out the bold spiral form and heavy ribbed structure typical of the species. The carving work helps emphasize the shape of the shell while the polished surface brings forward the fossil’s natural patterning, chamber structure, and mineral contrast. Pieces like this usually have a strong display quality because they sit somewhere between natural specimen and finished decorative object, letting the fossil’s original form stay recognizable while giving it a cleaner, more sculptural finish.

Douvilleiceras was a marine cephalopod that lived during the Cretaceous, when shallow seas covered large parts of the world and dinosaurs still ruled on land. Like other ammonites, it was related to modern squid, octopus, and nautilus, and its chambered shell helped control buoyancy in the water. Madagascar is well known for producing ammonite fossils from marine sedimentary deposits, where these shells were buried, mineralized, and preserved for over 100 million years. A polished carved example like this highlights both the biology of the animal and the fossilization process, making the internal structure and outer shell form much easier to appreciate.

Ammonite fossils are often associated with continuity, movement, and the long turning cycles of life. Many people are drawn to them as symbols of growth, resilience, and steady progress over time. A carved and polished ammonite like this is often chosen for its grounding feel and its connection to deep time, carrying a sense of order, age, and natural permanence.

XMini
Approximate Size of 1 piece: 10mm x10mm x5mm
Approximate Weight of 1 piece: 1.5g

Mini
Approximate Size of 1 piece: 16mm x14mm x9mm
Approximate Weight of 1 piece: 2.5g

Small
Approximate Size of 1 piece: 22mm x18mm x14mm 
Approximate Weight of 1 piece: 5.8g

Medium
Approximate Size of 1 piece: 38mm x 29mm x 17mm
Approximate Weight of 1 piece: 22g

Large
Approximate Size of 1 piece: 50mm x 39mm x 27mm
Approximate Weight of 1 piece: 55g

XL
Approximate Size of 1 piece: 60mm x45mm x30mm
Approximate Weight of 1 piece: 100g

XXL
Approximate Size of 1 piece: 75mm x55mm x39mm
Approximate Weight of 1 piece: 173g

XXXL
Approximate Size of 1 piece: 88mm x66mm x43mm
Approximate Weight of 1 piece: 222g

4XL
Approximate Size of 1 piece: 140mm x111mm x63mm
Approximate Weight of 1 piece: 812g

Quantity: 1pc

With this product, you will get the actual stone in the photograph. We do what we can to buy good quality products and price them honestly. The rocks may differ from the photos, but we hope we do them justice.