Crystallised Ammonite

A fossilised ammonite whose shell has recrystallised into a deep amber, glass-like finish — the outer whorls glowing gold and mahogany under light, while the central umbilicus stays pale and chalky where the original shell wall was thinnest. Ammonites were free-swimming cephalopods, closer relatives of squid and octopus than of true snails, that built their coiled shells one growing chamber at a time.

Interesting fact

The spiral chambers of an ammonite shell follow a logarithmic growth curve so precise that the same mathematics describes nautilus shells, hurricanes and spiral galaxies — and each vacated chamber was pumped with gas and used for buoyancy control, effectively making the ammonite its own submarine.

Region of Origin

Origin details to follow.

Availability

We currently hold multiple pieces of this type in a range of sizes. Let us know whether you're after something small and delicate or a larger statement piece when you enquire, and we'll match you with what's in stock.

Enquire — quote ID TA-0000