On the cliffs of Whitby in England, people once explained the coiled stones they found as snakes turned to stone by Saint Hilda when she founded her abbey. Fossil sellers helped the legend along, carving snake heads onto the ends of the spirals before selling them as "snakestones." They were ammonites, the shells of sea creatures that lived in the oceans for more than 300 million years, and scientists later gave Whitby's commonest ammonite her name: Hildoceras.
The ammonite meaning centers on change and growth, the spiral as a symbol of life moving forward in widening circles. Some ammonites still glow with rainbow color more than 100 million years after they died, and the reason is the same thing that makes the inside of a seashell shine.
Ammonite quick facts
- Chakra: Root
- Zodiac: Cancer, Aquarius
- Element: Earth
- What it is: A fossil shell, not a crystal
- Color: Brown, amber, cream and grey, sometimes with rainbow iridescence
- Age: Tens to hundreds of millions of years, depending on the species
- Commonly from: Madagascar, Morocco, England, Canada (ammolite)
- Pairs with: smoky quartz, red jasper, clear quartz
The spiral of a long life
Change. Each chamber of an ammonite's shell was a stage of its life, outgrown and sealed behind it. The spiral is read as moving on gracefully from what's finished.
Outgrow a chamber. Write down one habit or worry you've outgrown. Fold the paper into a small square and tuck it under your ammonite for a week, the way the animal sealed off rooms it no longer needed. Then throw the paper away.
Growth. The shell grew outward in an ever-widening coil, a symbol of steady progress that builds on everything before it.
Grounding. As a relic of seas the dinosaurs knew, ammonite is a root stone, kept for perspective when today's problems feel too big.
The name comes from Pliny the Elder, who called these fossils "horns of Ammon," after the Egyptian god Ammon, shown with curled ram's horns. In Hindu tradition, ammonites from Nepal's Gandaki River are shaligrams, worshipped as a form of Vishnu. Rainbow ammonites, whose shells still shimmer, add a note of joy to the meaning, color surviving across deep time.
Saturn's sign and the sea's
Ammonite belongs to the root chakra, for its age and its earthy grounding, and its element is earth. Aquarius was traditionally ruled by Saturn, the planet of time, a fit for a fossil this old. Cancer, a water sign, suits a creature that lived its whole life in the sea.
Spirals for every season
- On a desk during a career change
- Beside a journal at the start of a new year
- On a bookshelf as a conversation piece about deep time
- In a child's science corner or rock collection
- In meditation, tracing the spiral inward and back out
- As a gift for a graduate, a birthday that ends in zero or a retirement
Ammonite, nautilus or ammolite? Look at the lines
Ammonites get confused with a few other spirals.
| Ammonite | Nautilus | Ammolite | |
|---|---|---|---|
| Alive today? | No, extinct about 66 million years ago | Yes, in the Pacific and Indian oceans | No, it's a gem cut from ammonite shell |
| Siphuncle (tube through the chambers) | Along the outer edge | Through the center | n/a |
| Look | Fossil shell with frilly suture lines | Smooth shell with simple chamber walls | Thin, brilliantly colored shell layer |
Frilly, leaf-like lines on a polished face mean ammonite. Smooth curves mean nautilus, and a flash of bright rainbow color like a butterfly wing points to ammolite.
Pieces to keep beside it
Place. The smoky quartz tower brings smoky quartz's steady, earthy grounding to a shelf beside a fossil, and the smoky quartz guide covers how natural radiation turns it grey. A clear quartz tower adds clarity to ammonite's long view (more in the clear quartz guide).
Wear. The red jasper tree of life earrings carry red jasper's root chakra strength, the tree of life a sign of growth and roots that hold.
For more stones with the same rooted feel, browse the root chakra crystals collection.
Soft as a seashell: caring for ammonite
A polished ammonite is a fossil shell, mostly calcite, aragonite and the rock that filled it, so it's softer than most crystals, about 3 to 4 on the Mohs scale. Keep it away from harder stones, and never use acids or vinegar, which etch calcium carbonate. Wipe it with a dry or barely damp cloth, and keep iridescent pieces out of strong sun and heat. To cleanse it, hold it and trace the spiral from the center out, or rest it beside a bowl of dried herbs overnight. Quick care facts for every stone we carry are in our crystal care chart. Every crystal in our shop is smudged with sage and charged in the moonlight before it ships.
Ammonite FAQ
Is ammonite a fossil?
Yes. It's the fossilized shell of an extinct sea creature related to octopus and squid.
Is ammonite still alive?
No. The last ammonites died out about 66 million years ago, around the same time as the dinosaurs.
Is ammonite a nautilus?
No. Their shells look alike, but ammonites were more closely related to octopus, squid and cuttlefish.
What does ammonite mean in the Bible?
In the Bible, the Ammonites were an ancient people east of the Jordan River. The fossil's name comes from a different source, the Egyptian god Ammon, so the two aren't related.
How can you tell if ammonite is real?
Look for the suture lines. Real ammonites show frilly, branching lines that never quite repeat. Carved or cast copies have smooth or perfectly even ones.
Is ammonite worth anything?
Most polished ammonites are affordable. Large, complete or brightly iridescent specimens, and gem ammolite, are worth much more.
Why some ammonites still shimmer
An ammonite's shell was lined with nacre, the same mother-of-pearl that lines many seashells today, built from thin layers of the mineral aragonite. When light passes through those stacked layers, it reflects and interferes, splitting into rainbow colors. In most fossils that original shell has turned to calcite or been replaced by other minerals, but in some, especially from Madagascar and from the Canadian Rockies where ammolite is mined, the nacre survived. That's why a 70- to 110-million-year-old shell can still catch the light like a fresh seashell. The Blackfoot people call ammolite iniskim, the buffalo stone. The frilly lines across a polished face are sutures, the edges where the walls between chambers met the outer shell.
Each piece we sell is one of a kind, and the one pictured is the one you'll receive.