Ammonite With Opalescent Shell -Approx 180 million years old- from Madagascar


This exquisite ammonite with opalescent sheen was excavated from the Mahajanga region of Madagascar.

Approximately 180 million years old (Mesozoic), it's a specimen of exceptional size, quality and completeness, with darting irridescent red flashes. The nacre within the shell of this creature has fossilized over millions of years, transforming into a calcium carbonate known as aragonite, causing this refraction of colour.

At 170x145 mm in size, with a depth of 40 mm, this is a breathtaking, rare, intact specimen that would complement any collection.

Size: 170x145x40mm

Weight: 960g

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