Amber Identification Guide

What Amber Looks Like

Amber is fossilized tree resin, an organic 'gem' rather than a mineral. It is millions of years old and hardened from ancient conifer or angiosperm sap.

• Color: golden yellow, honey, orange, brown; also rarer green, red ('cherry'), and bluish or 'butterscotch' opaque varieties.
• Luster: resinous to greasy; vitreous when polished.
• Transparency: transparent to translucent or cloudy.
• Habit: irregular nodules, drops, and flattened masses; no crystal form. Often contains trapped air bubbles, plant debris, or insects (inclusions).

Step-by-Step Field ID Checklist

1. Saltwater float test. Dissolve about 2 tablespoons of salt per cup of water; real amber floats while most plastics and glass sink. This is the most useful field test.
2. Feel the warmth and weight. Amber is very light and feels warm (not cold like glass) to the touch.
3. Static test. Rub it on wool/cloth; charged amber attracts small bits of paper or hair (the Greek for amber, elektron, gave us 'electricity').
4. Hardness. Mohs 2–2.5; a knife can scratch it (do so discreetly), producing a crumbly powder, not a shaving.
5. Look for inclusions. Insects, bubbles, and plant fragments support authenticity.
6. Smell test (hot point). A heated needle touched to true amber gives a piney, resinous scent; plastic smells acrid/chemical.

Key Diagnostic Tests

• Specific gravity: ~1.05–1.10 — low enough to float in saturated saltwater.
• Hardness: 2–2.5 (soft).
• Warmth: poor heat conductor, feels warm.
• Static: develops a static charge when rubbed.
• Fluorescence: often glows pale blue/green under UV light.
• Fracture: conchoidal, brittle; no cleavage.

Common Look-Alikes and How to Tell Them Apart

• Copal (young, sub-fossil resin): very similar but softer and less mature; copal becomes tacky and dissolves/clouds with a drop of acetone or alcohol, while true amber resists it. Copal also floats.
• Plastic/resin imitations: usually sink in saltwater, feel less warm, may show mold seams, and give an acrid smell with a hot point. Bakelite is denser and sinks.
• Glass imitations: cold to the touch, hard (scratches steel — amber cannot), heavy (sinks), and not scratchable by a knife.
• Pressed/reconstructed amber (ambroid): real amber but melted and pressed; look for flow lines, elongated bubbles, and a slightly different sheen.

Where Amber Is Found

The world's most famous amber comes from the Baltic region (Kaliningrad/Russia, Poland, Lithuania), where it weathers out of marine 'blue earth' and washes up on beaches. Other major sources are the Dominican Republic (often with insect inclusions and rare blue amber), Mexico (Chiapas), and Myanmar (Burmite, very old). Look for amber on beaches after storms, in lignite/coal-bearing sediments, and in stream gravels.