Shungite
Shungite (Non-crystalline carbonaceous mineraloid) · Mineral Specimen / Decorative Stone
Crystal System
Amorphous (Non-crystalline); lacks a systematic internal structure; typically found in massive or earthy habits.
Mineral Group
Native Elements (Carbon-rich mineraloid)
Chemical Formula
C (Carbon, typically >90% in elite variety) with incidental SiO2 and Al2O3
Formation Process
Sedimentary/Metamorphic: Formed through the metamorphism of ancient organic sediments (biogenic carbon) in a marine environment approximately 2 billion years ago.
About This Crystal
Opaque, matte to sub-metallic finish, charcoal grey to black. This specimen shows a dull, stony luster with a rough, uneven surface texture and fine granular details.
Physical Characteristics
Color: Matte black to charcoal; Streak: Black; Cleavage: None; Fracture: Uneven to conchoidal (in elite types); Specific Gravity: 1.8 - 2.0; Fluorescence: None.
Optical Properties
Opaque; Luster: Sub-metallic to dull; Refractive Index: N/A (Opaque); No pleochroism or birefringence.
Hardness & Durability
Origin Region
Shunga village, Karelia, Russia (Primary source); typically found in Precambrian metamorphosed oil shales.
Hardness & Durability
Mohs Hardness: 3.5 - 4.0. Relatively soft and brittle; susceptible to scratching and chipping; low toughness.
Care & Maintenance
Clean with warm soapy water and a soft cloth; avoid chemicals and ultrasonic cleaners. Store separately to prevent scratches from harder minerals.
Rarity & Value
Common (Regular type) to Rare (Elite/Silver/Noble type). Value depends on carbon content and luster; generally affordable as a rough specimen.
Special Characteristics
Contains fullerenes (hollow carbon molecules such as C60); highly conductive of electricity; lacks typical crystal facets.
Lore & History
Historically used in Russia for water purification (Peter the Great's Shunga springs). Metaphysically associated with grounding and EMF protection.