
mineral
Amber
Succinite (C10H16O)
Hardness: 2.0-2.5 on Mohs scale; Color: Honey-yellow, orange, or brown; Luster: Resinous; Crystal structure: Amorphous (non-crystalline); Specific Gravity: 1.05-1.10
- Hardness
- 2
- Color
- Honey-yellow, orange, or brown
- Luster
- Resinous
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Physical properties
Hardness: 2.0-2.5 on Mohs scale; Color: Honey-yellow, orange, or brown; Luster: Resinous; Crystal structure: Amorphous (non-crystalline); Specific Gravity: 1.05-1.10
Formation & geological history
Fossilized tree resin from ancient coniferous forests, primarily dating back to the Eocene epoch (approx. 34-56 million years ago) or older. Typically found in marine sedimentary deposits.
Uses & applications
Extensively used in jewelry (beads, pendants), as an ornamental material, and historically for healing rituals or as a component in varnish and perfumes.
Geological facts
Amber is not a true mineral because it is organic. It is famous for sometimes trapping prehistoric insects, plants, or small vertebrates in a process called entombment, providing a unique look into ancient ecosystems.
Field identification & locations
Identified by its warmth to the touch, lightness (it can float in saltwater), and tendency to develop a static charge when rubbed with a cloth. Often found along the Baltic Sea coast and in the Dominican Republic.
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sedimentary
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Metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock