
Pumice
Looks like ambergris because:Light, and grey, tan or white.
But check this:Very porous and full of holes. No waxy feel, no musky smell.
Photo: Mauro Cateb, Wikimedia Commons, cropped, CC BY-SA 3.0

Many waxy, dark or light beach finds are not ambergris. Check the signs before you wash, cut or store it.
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Real ambergris is matte, slightly waxy, lighter than a rock its size, and smells marine, then sweet and earthy with age. Many Australian beach finds are lookalikes, so check all 7 signs before you wash, cut or store yours. I'm Nabil Valiulla of Ambergris Canada, and I'll assess your photos for free.
Have the piece in front of you and go through these 7 checks in order. No single check proves it. Several together are a good sign.

Black, grey, tan or white, with a matte finish. Not glossy or marbled.

Slightly waxy and soft when warm, harder in the cold.

Lighter than a rock of the same size.

Fresh pieces can smell fishy or fecal. Aged pieces smell sweet and earthy.

Gently warmed, the scent gets stronger and more pleasant or musky.

May hold squid beaks or other natural debris.

Keep it dry. Never leave it soaking in seawater or freshwater.
Wax, palm oil, rubber and sewer grease can also melt or smoke when warmed, so the warm smell check is never enough on its own. Does your find match most of these? Send me photos for a free assessment.
Many Australian beach finds look like ambergris at first glance. Here's how to spot the difference.

Looks like ambergris because:Light, and grey, tan or white.
But check this:Very porous and full of holes. No waxy feel, no musky smell.
Photo: Mauro Cateb, Wikimedia Commons, cropped, CC BY-SA 3.0

Looks like ambergris because:Pale, waxy and soft, and it can float.
But check this:Too soft or greasy, and smells oily, rancid, or of cooking fat or a candle.
Paraffin wax found on Wangerooge. Still from a video by Rhetos, Wikimedia Commons, cropped, CC BY-SA 4.0

Looks like ambergris because:Dark, rounded, and found near the tide line.
But check this:A hard or sticky black surface, and a strong petroleum or chemical smell.
Photo: JLPC, Wikimedia Commons, cropped, CC BY-SA 3.0

Looks like ambergris because:Dark or brown, dried, and washed up with the tide.
But check this:Breaks apart into fibres, smells strongly of seaweed, and is not waxy.
Seagrass sea balls. Photo: Asma Ben Gharbi, Wikimedia Commons, cropped, CC BY-SA 4.0

Looks like ambergris because:Waxy, oily, and from a marine animal.
But check this:Rots quickly, with a rancid smell and a soft, greasy texture.
Bowhead whale, Alaska. Photo: Alaska Jack, Wikimedia Commons, cropped, CC BY-SA 4.0

Looks like ambergris because:Amber or brown, and natural.
But check this:Glassy and see-through at the edges. Fresh resin is sticky and smells of pine.
Kauri gum. Photo: NEON_ja, Wikimedia Commons, cropped, CC BY-SA 3.0
Also watch for fatbergs and sewage balls: grey, black or waxy-looking lumps with a foul smell, a dirty inside and an oily surface. Don't handle them with bare hands.
If it floats, feels waxy, is lighter than expected and doesn't smell of oil, sewage or seaweed, send me photos for a free assessment.
Australian beaches often receive ocean debris after storms, big swells and heavy sea traffic. Tar balls, vegetable fat, pumice, seaweed and other materials can look like ambergris from a distance. A photo assessment helps you avoid damaging the piece or mistaking a common lookalike for something rare. For a full side-by-side comparison, see my guide to Australian ambergris lookalikes.

Quick answers about identifying ambergris in Australia.
By its waxy texture, its musky, oceanic smell and its colour, from greyish-black when fresh to white when aged. Go through the 7 checks above, then send me photos and I'll tell you what I see.
Most beach finds are not. Compare yours with the lookalikes above and the full lookalikes guide, then send me photos for a free assessment.
Fresh pieces smell strongly of the sea, and often fecal. As it ages, the smell turns sweet, earthy and musky, a little like old wood, tobacco or damp earth. Smell alone is not proof, because people describe it very differently.
A heated needle touched to ambergris melts a small spot into a dark, resin-like liquid with a musky smell. It is a useful hint, not proof: wax, palm oil residue, rubber and grease can react in a similar way. Use only a tiny spot, and treat it as one check among several.
Keep it dry: damp causes mould and weight loss. Keep it out of direct sun and away from heaters, since heat breaks down the scent and can soften it. Wrap it in cotton cloth, or keep it in a canvas bag or wooden box so it can breathe, never sealed in plastic. Handle it with clean, dry hands, brush off loose sand and seaweed, and store it away from perfumes, incense and other strong smells.
The ambergris trade is not legal in Australia. I can still assess your find for free and tell you what it most likely is.

Send me clear photos and I'll give you an honest answer. It's free, with no obligation, and I review every one myself.
I post new pieces, field trips and identification tips on Instagram.

Most of what washes up is driftwood and stone. I post the pieces that aren't, and how I tell them apart.
