Shungite
Shungite (Amorphous Carbon) · Collector Mineral / Decorative Stone / Industrial Mineral
Crystal System
Amorphous (Non-crystalline) with a massive or stony habit
Mineral Group
Native Element (Mineraloid)
Chemical Formula
C (Carbon, typically 30-98%) with traces of SiO2, Al2O3
Formation Process
Sedimentary/Metamorphic; formed from the metamorphosed remains of ancient algal mats and organic matter
About This Crystal
Opaque, black, stony to sub-metallic material. The surface appears matte to lustrous depending on grade (Elite vs. Regular). This specimen shows a dull to semi-vitreous luster with characteristic conchoidal fracturing and uneven texture.
Physical Characteristics
Color: Deep black to charcoal grey; Streak: Black; Cleavage: None; Fracture: Conchoidal to uneven; Specific Gravity: 1.8 - 2.0; Non-magnetic; Highly conductive (unique for a non-metal).
Optical Properties
Opaque; Sub-metallic to dull luster; No birefringence or refractive index measurable due to opacity.
Hardness & Durability
Origin Region
Karelia, Russia (Zazhoginsky mine); typically found in Precambrian sedimentary-volcanic rocks
Hardness & Durability
Mohs Hardness: 3.5 - 4.0; Brittle tenacity; Low durability for jewelry, susceptible to scratches and impacts.
Care & Maintenance
Clean with distilled water and soft cloth; avoid chemicals or ultrasonic cleaners; relatively soft, store separately to prevent scratching. High carbon content may leave black marks on skin or clothes.
Rarity & Value
Locally abundant in Karelia but unique globally; Value depends on carbon content (Elite Shungite with 90%+ carbon is most valuable). Generally affordable as a decorative stone.
Special Characteristics
Highly electrically conductive; contains fullerenes (spherical carbon molecules); can act as a natural water filter and shield against electromagnetic frequencies (EMF).
Lore & History
Used since the 18th century in Russia for water purification; Peter the Great established Russia's first spa at the deposit. Traditionally associated with grounding, protection, and purification of energy/water.