Cu(UO2)2(SiO3OH)2·6H2O
Kundalini rises through the throat, clearing all that conceals authentic expression
The name honours Marie Skłodowska-Curie (1867–1934), the Polish-French physicist and chemist who pioneered research into radioactivity, discovered polonium and radium, and became the first person to win two Nobel Prizes. The base mineral sklodowskite — a magnesium uranium silicate — was named by Alfred Schoep in 1924 in her honour. The prefix cupro- (from Latin cuprum, copper) distinguishes cuprosklodowskite as the copper-bearing analogue: copper (Cu) replaces magnesium (Mg) as the dominant non-uranyl cation.
Cuprosklodowskite's structure is built around the characteristic uranyl (UO₂²⁺) linear unit, in which uranium is doubly bonded to two oxygen atoms in a linear arrangement. These uranyl units are linked by silicate tetrahedra and copper coordination polyhedra into sheets, with water molecules and further copper ions occupying the interlayer space. The vivid apple-green colour arises from the combined chromophoric effect of both copper and the uranyl group.
The type locality is the Shinkolobwe mine, Katanga Province (now Haut-Katanga), Democratic Republic of Congo — a site historically significant as the primary source of uranium for the Manhattan Project. Cuprosklodowskite forms as a secondary mineral through the oxidation and weathering of primary uranium minerals such as uraninite in the upper, oxidised zones of uranium ore deposits. Additional occurrences are known from uranium-rich districts in France (Margnac, Haute-Vienne), Czech Republic, Portugal, Namibia, and the western United States.
This crystal contains naturally radioactive elements and emits low-level radiation. Owning radioactive minerals may be restricted where you live — some countries regulate them strictly, with legal limits as low as 1 becquerel per gram. Check your local law before acquiring or shipping one.
All radiation safety comes down to three words: time, distance, and shielding. Handle a specimen only briefly, keep it at arm's length, and store it behind glass or lead. Enjoy it visually, or for energy work at a distance — never worn as jewellery, slept beside, or held in prolonged contact.
The chief practical risk is not the dose from the shelf but radon — a heavy radioactive gas that sinks and pools in low, unventilated spaces. Keep specimens well-ventilated, or sealed in a gas-tight container; with radon's 3.8-day half-life it never builds without limit and clears within weeks. Stored sensibly, the real dose is tiny — far below what people willingly absorb at a radon spa.
How dangerous are radioactive crystals really? Usually far less than people fear — and the science of low-dose radiation is genuinely surprising. Our full guide covers safe handling and storage, how to read a dose, the truth about radon, and the radioactive beaches and century-old healing spas where people seek radiation out on purpose.
Read the full guide →In addition to uranium, cuprosklodowskite contains copper, which is toxic if ingested or absorbed through abraded skin. Do not use in water elixirs or gem waters under any circumstances.
Wash hands thoroughly after handling. Do not grind, polish dry, or abrade the specimen. Keep away from children and pets.
The uranium-238 in cuprosklodowskite undergoes radioactive decay, emitting alpha particles, beta particles, and gamma rays. Over geological time, this self-irradiation can gradually damage the crystal structure — a process called metamictisation — causing the mineral to become partially amorphous while retaining its external crystal form.
Under shortwave ultraviolet light, cuprosklodowskite fluoresces brilliant bright green — one of the most vivid fluorescent responses in the mineral kingdom. The luminescent centre is the uranyl (UO₂²⁺) ion, which absorbs UV energy and re-emits it in the visible green range. This property makes uranium minerals among the most visually dramatic under a UV lamp.
The etheric body cleanser. This is the most precise description of cuprosklodowskite's spiritual function — not a grand declaration but an exact statement of what it does. The etheric body carries the energetic blueprint of the physical form; patterns held at this layer eventually manifest as physical or emotional congestion. Cuprosklodowskite's kundalini current runs through this template, dissolving residues that no longer serve.
Kundalini at the ThroatThe throat chakra (vishuddha) is the centre of authentic expression — the place where inner truth either flows freely into speech and action or remains obstructed behind fear, conditioning, and unexpressed emotion. Kundalini moving through this centre does not soften the obstruction through comfort; it burns through it. What was blocked becomes transparent. What was suppressed finds its natural channel.
"Life begins where fear ends."— Osho
At D=4, cuprosklodowskite is a session-based crystal — best suited to active meditation, pranayama, or self-inquiry practice rather than continuous wear. F=5 and P=4 describe a mid-range, methodical effect: not overwhelming, but consistent and cumulative. Given its radioactive and copper content, working at a respectful distance — without prolonged skin contact — is both safe and fully sufficient to access its energetic range.