HgI2

Mercuric iodide (HgI₂) is an inorganic ceramic compound that exists as a layered crystal structure, making it notable for its anisotropic mechanical and electronic properties. Historically used in radiation detection applications and as a scintillation material, HgI₂ remains of interest in the research community for high-energy physics experiments and medical imaging where its density and atomic composition offer advantages for detecting gamma rays and X-rays. While primarily a specialized research material rather than a commodity engineering ceramic, it represents the class of heavy metal halides being explored for next-generation detector technologies in fields where conventional scintillators reach their performance limits.