Canadian Mineralogist 19 (1981), 393
NOMENCLATURE PROPOSAL APPROVED IN MAY 2013, IMA 13-B, Revision of the chemical formula of comancheite On the basis of a single crystal X-ray diffraction study, it has been shown that the accepted chemical formula of the mineral comancheite is incorrect. Comancheite was described in 1981 as a mercury oxychloride-bromide with formula Hg13(Cl,Br)8O9. It is in fact a mercury nitride with formula Hg2+55N3–24(NH2,OH)4(Cl,Br)34. - CNMNC Newsletter No. 16, August 2013, page 2708; Mineralogical Magazine, 77, 2695-2709.