Carbon-Rich Rock
Shungite
Shungite is a carbon-rich rock rather than a true mineral, formed roughly 2 billion years ago from ancient organic-rich sediment — predating the evolution of land plants entirely, which makes it one of the oldest carbon-bearing rocks on Earth despite not deriving from anything resembling coal's plant-based origin. It comes from essentially one place, the Karelia region of Russia near Lake Onega, making it as geographically singular as larimar or tanzanite.
The geology — what Shungite actually is
- Mineral class
- Rock (a metamorphosed, carbon-rich sedimentary rock — a form of amorphous carbon, distinct from coal, graphite, or anthracite)
- Chemical formula
- Predominantly carbon (C), with variable silicate mineral content depending on grade
- Crystal system
- Not applicable (amorphous carbon-based rock rather than a crystalline mineral)
- Mohs hardness
- 3.5 to 4
What causes the color: The black color comes directly from its high carbon content.
How it forms: Forms from ancient organic-rich sediment — likely algae and microbial mats — that was buried and metamorphosed roughly 2 billion years ago, well before land plants existed, making it unusual among carbon-rich rocks for being both this ancient and non-plant-derived.
- Karelia region, Russia, near Lake Onega (the only significant commercial source in the world)
Treatments & imitations: Untreated, sold in raw or polished form.
Real vs. fake: Genuine shungite is black, relatively lightweight for its size, and leaves a black mark when rubbed against a rough surface, similar to graphite's streak test. 'Elite' or 'noble' shungite is a real, rarer silvery-grey variety with even higher carbon content, distinct from and more expensive than ordinary black shungite.
The tradition — how people use Shungite
Historical use: Russian folk medicine and spa tradition used shungite regionally for centuries, and Peter the Great reportedly required Russian soldiers to carry shungite-treated water on campaign — a documented historical water-purification practice, distinct from the unsupported 'EMF-blocking' claims that circulate in some contemporary crystal marketing, which this site does not repeat as fact.
Metaphysical tradition: Protection and purification are the associations modern crystal-healing tradition gives shungite at the root chakra, drawing on its genuine historical role in Russian water-purification practice rather than the newer, scientifically unsupported EMF claims.
How to use it: Frequently kept in living spaces or, historically, used to treat drinking water in Russian folk tradition.
Cleansing & care: Moderately soft at Mohs 3.5-4 — a brief rinse is fine, but avoid harsh scrubbing given its softness.
Frequently asked questions
Does shungite really block EMF radiation?
This is a common claim in contemporary crystal marketing that lacks scientific support, and this site does not present it as fact. Shungite's genuine, documented historical use is in Russian folk water-purification and spa tradition, not electromagnetic shielding.
If shungite isn't plant-derived like coal, what was it actually made from?
The leading scientific explanation points to ancient microbial mats and algae-like organisms living in shallow Precambrian seas roughly 2 billion years ago, long before anything resembling a land plant had evolved — their organic remains accumulated in sediment that was later buried and metamorphosed into the carbon-rich rock mined today, a genuinely different biological source than the swampy plant material that eventually becomes coal.
What is 'elite' shungite?
A rarer, silvery-grey shungite variety with an even higher carbon content than the more common black type — a real, documented distinction in the material, not a marketing invention, and typically sold at a premium.
Related crystals
Hematite
Iron Oxide
Hematite is iron oxide, and its most reliable identifying feature isn't its metallic silver-black surface color at all — it's the streak. Scratch a piece of hematite across an unglazed porcelain tile and it leaves a reddish-brown mark, the same red pigment that made ground hematite the source of red ochre used in cave paintings tens of thousands of years before recorded history. Much of what's sold as 'magnetic hematite' jewelry today isn't real hematite at all, which is worth knowing before you buy.
Black Tourmaline
Tourmaline Group
Black tourmaline, mineralogically called schorl, is the most common member of the tourmaline group — a complex family of boron silicate minerals — and it's genuinely one of the most abundant accessory minerals in granite and pegmatite worldwide, meaning the raw material is easy to source even though well-formed, lustrous crystal specimens are still selectively mined for the crystal and mineral-specimen trade rather than everyday construction material.
Obsidian
Volcanic Glass
Obsidian isn't technically a mineral at all — it's a mineraloid, volcanic glass that cools too fast for atoms to organize into any crystal structure, which is why it has no defined chemical formula and no Mohs-scale crystal system in the way quartz or feldspar do. That same rapid, structure-free cooling is what gives obsidian its razor-sharp conchoidal fracture, a property humans have exploited for stone tools and ceremonial blades for tens of thousands of years, right up through surgical scalpel blades used in some modern operating rooms today.
Pyrite
Iron Sulfide
Pyrite earned its 'fool's gold' nickname for genuinely fooling prospectors for centuries, but the two minerals are easy to tell apart with a simple test that has nothing to do with color: scratch each across an unglazed tile, and pyrite leaves a greenish-black streak while real gold leaves a golden-yellow one. The name pyrite itself comes from the Greek word for fire, 'pyr,' because striking it against flint or steel produces sparks — a property humans exploited for fire-starting long before matches existed.
Where to buy Shungite
We don't have an active affiliate program live yet, so instead of a placeholder link, here's the same buying guidance we'd give a friend.
Specialty mineral dealers & gem shows
The most reliable source for anything beyond common tumbled stones — sellers who specialize in minerals tend to disclose treatments and localities unprompted, because their repeat customers ask.
GIA/AGS-affiliated jewelers
For cut gemstones meant for jewelry (not raw specimens), a seller who can produce or reference an independent lab report (GIA, AGS) removes almost all of the real-vs-fake guesswork.
Marketplace sellers with a track record
Etsy and similar marketplaces host genuine small mineral dealers alongside mislabeled resin castings — check seller reviews specifically for photos of received items, not just star ratings.
Local rock & gem shops
Being able to handle a piece before buying lets you apply the weight and hardness checks described on each stone's own page — something no photo can substitute for.
Whichever seller you choose, ask directly whether the stone is natural or synthetic, and whether it's been treated (heated, dyed, irradiated) — a straightforward answer is the single best signal of a trustworthy seller, more useful than any star rating.
Some links on this page are affiliate links — if you buy through them, GemGlow may earn a small commission at no extra cost to you. We only link to sellers we'd genuinely recommend.
Sources and factual basis for the geology above: see our methodology.