mineraloid
Amber with Inclusion
Succiniferous fossil resin (C10H16O)
Hardness: 2.0-2.5 on Mohs scale; Color: honey-yellow to orange-brown; Luster: resinous; Crystal structure: Amorphous; Specific gravity: 1.05-1.10.
- Hardness
- 2
- Color
- honey-yellow to orange-brown
- Luster
- resinous
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Physical properties
Hardness: 2.0-2.5 on Mohs scale; Color: honey-yellow to orange-brown; Luster: resinous; Crystal structure: Amorphous; Specific gravity: 1.05-1.10.
Formation & geological history
Formed from the fossilization of plant resin (typically from coniferous trees like Pinaceae) over millions of years. This process involves polymerization and the eventual hardening into a stable mineraloid. Common in the Baltic region (Eocene epoch, ~44 Ma) and Dominican Republic (Miocene, ~20 Ma).
Uses & applications
Used extensively in jewelry, ornamental carvings, and for paleontological study of ancient life forms (inclusions).
Geological facts
Unlike true minerals, amber is organic. It can float in saltwater due to its low density. Some specimens contain 'inclusions' like insects or even small crabs, providing a window into prehistoric ecosystems.
Field identification & locations
Identify by its lightness, warmth to the touch, and ability to generate static electricity when rubbed. Authentic amber will usually float in a saturated salt solution while fakes like plastic or glass will sink.
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