Copal
Copal is subfossil tree resin, C₁₀H₁₆O (approx., variable). In the hand, it rates 1.5 to 2 on the Mohs scale, and it runs pale yellow and honey. Looks like amber, but younger and softer, a drop of alcohol turns its surface sticky, and it often holds suspiciously perfect modern-looking insects.
The geology.
Copal carries the formula C₁₀H₁₆O (approx., variable). It belongs to the amorphous system. Catalogues list it as subfossil tree resin.
It sits at 1.5 to 2 on the Mohs scale. The surface reads resinous. Light behaviour is transparent to translucent. Specific gravity runs 1.03 to 1.08. The streak is white. It breaks with conchoidal fracture; brittle-sticky.
Looks like amber, but younger and softer, a drop of alcohol turns its surface sticky, and it often holds suspiciously perfect modern-looking insects.
It reaches buyers as polished nuggets with insects, raw lumps or beads sold as 'amber'.
The origins.
Madagascar, Colombia, East Africa, resins from hundreds to a few million years old, far short of true amber's age.
On value, the database notes: affordable; honest copal is lovely, fake 'amber' pricing is the scam.
Traditional associations.
In energy work traditions, copal shares amber's warmth-and-clearing associations and a long history as ceremonial incense.
We keep this section because people ask. It sits below the geology on purpose, and none of it describes something the stone does.
Spotting the real thing.
Looks like amber, but younger and softer, a drop of alcohol turns its surface sticky, and it often holds suspiciously perfect modern-looking insects.
The big issue is direction: copal with embedded modern insects is endlessly sold as 'amber with fossil inclusions', the alcohol test answers in seconds.
| Looks like | How to tell them apart |
|---|---|
| Amber | True amber shrugs off an alcohol drop and is harder; copal goes tacky and scratches with a fingernail |
| Plastic | Plastic sinks in saturated salt water and won't go sticky under solvent |
| Pressed amber | Pressed material shows flow lines and flattened bubbles between fused chunks |
At-home tests.
Before anyone talks you into a lab report, these are the checks worth doing yourself on copal.
| Test | What you should see |
|---|---|
| Solvent swab | Alcohol/acetone drop turns surface sticky (amber resists) |
| By eye | Fingernail can mark it |
| Water check | Floats in saturated salt water like amber, so use the solvent test |
| Under UV | Whiter, chalkier UV glow than Baltic amber |
If these checks leave you unsure, that is what appraisers are for. Do not file, heat or soak a piece to find out.
Care & handling.
At 1.5 to 2 on the Mohs scale this is a soft material. Keep it as a display piece, store it apart from harder stones, and skip daily-wear settings.
It breaks with conchoidal fracture; brittle-sticky, which is worth knowing before you set it or drop it.
Most damage happens during cleaning, not wearing. Avoid steamers, ultrasonic tanks and anything from under the sink.
A deeper look.
Extended detail on composition, sourcing, authentication and market value.
The physical record
The formula on record is C₁₀H₁₆O (approx., variable). Crystal system: Amorphous. Specific gravity: 1.03 to 1.08. Streak: White. Cleavage and fracture: Conchoidal fracture; brittle-sticky.
How it reaches the market
Madagascar, Colombia, East Africa, resins from hundreds to a few million years old, far short of true amber's age.
What it gets confused with
Amber: True amber shrugs off an alcohol drop and is harder; copal goes tacky and scratches with a fingernail. Plastic: Plastic sinks in saturated salt water and won't go sticky under solvent. Pressed amber: Pressed material shows flow lines and flattened bubbles between fused chunks.
What it is worth
Affordable; honest copal is lovely, fake 'amber' pricing is the scam.
Where buyers get caught
The big issue is direction: copal with embedded modern insects is endlessly sold as 'amber with fossil inclusions', the alcohol test answers in seconds.
One more thing
Copal was the sacred incense of Maya and Aztec ceremony, its name comes from the Nahuatl 'copalli', meaning incense.
An education-first guide.
There is nothing to buy on this page. Copal is not part of our catalogue, and the guide is here anyway because somebody searching the name deserves a straight answer.
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