Copal is a semi-fossilized tree resin that is significantly younger than amber, often displaying a sticky surface when touched with a solvent like acetone. Collectors look for unique insect or botanical inclusions, though the material is much softer and more soluble than true amber. It is typically found in recent geological deposits rather than ancient fossil beds.
Is this copal?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch copal with a known reference. Copal sits at Mohs 1.5-2.5 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Copal leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Copal typically shows a resinous luster.
- 4Match the color rangeCompare against the expected color range: yellow, orange, brown, pale yellow.
- 5Look at form & habitTypical habit: amorphous.
Often confused with
Copal vs. its common look-alikes — and how to tell them apart in the field.
All properties
- Mohs hardness
- 1.5-2.5
- Density
- 1.0-1.1 g/cm³
- Streak
- White
- Luster
- Resinous
- Transparency
- Transparent
- Crystal habit
- Amorphous
- Cleavage
- None
- Fluorescence
- Blue to White Under UV
- Rarity
- Common
- Uses
- Collector, Decorative, Lapidary
- Host rock
- Sedimentary Deposits
- Typical price
- $5-50 depending on inclusion size and clarity
Where rockhounds find copal
Classic worldwide localities
- Colombia
- Madagascar
- Dominican Republic
- East Africa
Field-hunting tip
Look in sedimentary deposits country — that is the host setting where copal typically forms. If you start seeing none in float, you are in the right ground. Field specimens usually show a amorphous habit, so train your eye for that shape before scanning the outcrop.

