Chernobylite is a solid solution technogenic compound consisting of a crystalline zirconium silicate and an amount of uranium as high as 10%.
It was discovered in the corium (a lava-like glassy material) that was formed during the nuclear meltdown of Reactor 4 in the Chernobyl disaster. [1] [2] [3] Chernobylite is highly radioactive due to its substantial uranium content and contamination by fission products.