metamorphic
Shungite
Non-crystalline carbon (high-carbon metamorphic rock)
Hardness: 3.5-4.0 (Mohs); Color: Black, deep grey; Luster: Sub-metallic to dull matte; Crystal Structure: Amorphous; Cleavage: None; Specific Gravity: 1.8-2.0
- Hardness
- 3
- Color
- Black, deep grey
- Luster
- Sub-metallic to dull matte
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Physical properties
Hardness: 3.5-4.0 (Mohs); Color: Black, deep grey; Luster: Sub-metallic to dull matte; Crystal Structure: Amorphous; Cleavage: None; Specific Gravity: 1.8-2.0
Formation & geological history
Formed through the metamorphism of ancient Precambrian organic sediments (algae/bacteria) roughly 2 billion years ago, found in volcanogenic-sedimentary deposits.
Uses & applications
Primarily used for water purification, decorative jewelry, pigment production, and in alternative medicine for perceived electromagnetic field (EMF) protection.
Geological facts
Shungite is famous for containing fullerenes (buckyballs), a rare crystalline form of carbon. It is named after the village of Shunga in Karelia, Russia, where it was first discovered.
Field identification & locations
Identify by its light weight (low density) and ability to conduct electricity. Authentic 'Elite' or 'Noble' shungite has a shiny, silver-like luster, while common shungite is matte black. Most commonly found in the Karelia region of Russia.
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