How to identify Amber with inclusions

To correctly identify Amber with inclusions (Amber (fossilized tree resin)), check each of these features in order. Many rocks and minerals look alike, so cross-reference multiple properties before deciding.

Step-by-step identification

1. 1

   Color

   Overall color and any zoning or banding

   Typically yellow, orange, brown; less commonly red, green, blue, or white. Color can be uniform or mottled.

2. 2

   Luster

   How the surface reflects light: metallic, vitreous, dull

   Resinous to waxy.

3. 3

   Texture

   Grain size and surface feel: coarse, fine, glassy

   Smooth, often with conchoidal fracture surfaces. Can feel warm to the touch due to low thermal conductivity.

4. 4

   Crystal Form

   Shape of visible crystals or crystal faces

   Amorphous; lacks crystal structure.

5. 5

   Cleavage

   How it breaks: flat cleavage planes vs irregular fracture

   None.

6. 6

   Geological Environment

   The rock formation and setting where it occurs

   Found in sedimentary deposits, often associated with lignite or coal seams, or washed ashore from marine deposits. Terrestrial environments where resin-producing forests once thrived, followed by burial and fossilization.

Key Facts

Hardness

2.0-2.5 on Mohs scale (very soft)

Specific Gravity

1.05-1.10 g/cm³ (floats in saturated saltwater)

Crystal System

Amorphous (no crystal structure)

Color

Yellow, orange, brown, red, green, blue, white

Luster

Resinous to waxy

Transparency

Transparent to opaque

Fracture

Conchoidal

Cleavage

None

Composition

Complex mixture of organic compounds, primarily polymerized isoprenoids (C10H16O) with varying amounts of succinic acid (in Baltic amber) and other organic acids, alcohols, and esters.

Physical characteristics

• Crystal Habit: Amorphous masses, nodules, stalactitic forms, or irregular lumps.
• Cleavage Type: None
• Fracture Type: Conchoidal, brittle
• Tenacity: Brittle
• Luster Type: Resinous to waxy

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