Rock Identifier
Amber (Fossilized Tree Resin) — gemstone
gemstone

Amber

Fossilized Tree Resin

Hardness of 2 to 2.5 on the Mohs scale, golden-yellow to brown color, resinous luster, amorphous crystal structure, conchoidal fracture, specific gravity of 1.05 to 1.10.

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Physical properties

Hardness of 2 to 2.5 on the Mohs scale, golden-yellow to brown color, resinous luster, amorphous crystal structure, conchoidal fracture, specific gravity of 1.05 to 1.10.

Formation & geological history

Formed from the fossilization of tree resin, typically originating from coniferous trees, over millions of years (ranging from carboniferous to sub-recent, most commonly Cenozoic/Mesozoic).

Uses & applications

Used primarily in jewelry, decorative ornaments, and for scientific preservation of ancient flora and fauna inclusions.

Geological facts

Amber can float in saltwater and often contains perfectly preserved prehistoric insects, plant fragments, or feathers trapped in the sticky resin millions of years ago.

Field identification & locations

Can be identified by its low specific gravity, warm touch, ability to generate static electricity when rubbed, and characteristic aromatic scent when gently heated.