Shungite
Shungite (Non-crystalline carbon mineraloid) · Mineral Specimen / Decorative Stone
Crystal System
Amorphous (Non-crystalline mineraloid); typically occurs in massive or tumbled form
Mineral Group
Native Elements (Carbon variety)
Chemical Formula
C (Carbon-rich, often containing 30-98% carbon and fullerenes)
Formation Process
Sedimentary/Metamorphic; likely formed from the lithification of ancient organic-rich sediments (algal or bacterial mat remains) about 2 billion years ago
About This Crystal
Deep black, opaque stone with a matte to sub-metallic luster. When polished or tumbled, it can exhibit a slightly silvery sheen or dark grey metallic glint. It often contains thin veins of gold-colored pyrite or white jarosite/quartz.
Physical Characteristics
Color: Deep black; Streak: Black; Cleavage: None; Fracture: Conchoidal to uneven; Specific Gravity: 1.8 to 2.0; Non-fluorescent; Electrically conductive (notable feature).
Optical Properties
Isotropic/Opaque; Luster: Sub-metallic to vitreous (polished Elite) or matte (tumbled regular); Refractive Index: N/A (opaque).
Hardness & Durability
Origin Region
Karelia region of Russia (notably the Zazhoginsky mine near Shunga village)
Hardness & Durability
Mohs hardness: 3.5 to 4.0; Brittle; Low durability for jewelry that requires impact resistance.
Care & Maintenance
Wash with warm soapy water; avoid ultrasonics or harsh chemicals. It can leave a black residue on skin or clothing if not sealed. Store separately from harder stones to prevent scratching.
Rarity & Value
Common (Regular) to Rare (Elite/Noble Shungite); Value is based on carbon percentage and the presence of fullerenes; Regular shungite is inexpensive.
Special Characteristics
Electrical conductivity; Contains C60 and C70 fullerenes (buckyballs); Some specimens show metallic veining of pyrite.
Lore & History
Historically used in Russia as a water purifier; Peter the Great used it in spas. Metaphysically associated with the Root Chakra, grounding, and protection from EMF radiation.