analytical determinations contain between 14.91% and 17.08% ZrO2 with only 1.99% and 1.59% SiO2 respectively. The chemical formula (IMA version: ) doesn't contain Zr. Pavel Kartashov: If no Zr and U>Th then euxenite group, polycrase If no Zr and U<Th then aeschynite group, priorite, blomastrandin. Divalent sulfide. Mackinawite (Y: 1963) 02.CC.25 (IMA formula: ()), sulfide anion (atoms per formula unit, apfu) might be too low due to analytical losses. Pseudo monovalent mercury, mindat.org changed the chemical formulas: there is mercury(II) and (dimercury) [Hg-Hg] now. Notes: Claraite (IMA2016-L, IMA1981-023) 05.DA.30 (IMA formula: Cu2+3CO3(OH)4·4H2O), but after U. Kolitsch it has essential As and S. Kolitsch, U. & Brandstätter, F. (2012): 1743) Baryt, Chalkophyllit und Clarait vom Pengelstein bei Kitzbühel, Tirol. P. 149. in Niedermayr, G. et al. (2012): Neue Mineralfunde aus Österreich LX. Carinthia II, 202./122., 123-180. Putz, H., Lechner, A. & Poeverlein, R. (2012): Erythrin und Clarait vom Pichlerstollen am Silberberg bei Rattenberg, Nordtirol. Lapis, 37 (1), 47-52; 62. New chemical formula: . Cosalite (Y: 1868) 02.JB.10 (IMA formula: Pb2Bi2S5). It might have copper as essential constituent (AM Clark, MH Hey (1993) Hey's mineral index: mineral species, varieties and synonyms), (). The general structural formula for cosalite can be expressed as: CuAgPbBiS20. Mayenite (IMA2013-C, IMA1963-016): it can not be found in nature. Mayenite (stabilized by moisture) can be found in cement industry chemistry. Chlormayenite can be found in nature. Suspended (IMA status) (IMA2000-026) : IMA approval status is suspended, but it was incorrectly stated as approved in Grice, J.D. & Ferraris, G. (2001). (IMA1989-012), zhangpeishanite (of Shen), unnamed (cordylite-like (). Grandfathered (IMA valid species) Chrysocolla? (Theophrastus, 315 BC), it's suggested that it is mixture of spertiniite (Cu(OH)2) and chalcedony or opal, it has similarities with copper-bearing allophane. Loranskite-(Y) (Y: 1899) it might be a fictional mineral, the type material is probably a mixture of euxenite and zircon. Rejected or discredited minerals Possibly non-valid: bismutostibiconite, lazurite and lonsdaleite. ArsenosulvaniteD Probably colusite. Carbonate-apatites: Carbonate-rich fluorapatite (discredited 2008) 08.BN.05 Carbonate-rich hydroxylapatite (discredited 2008) 08.BN.05 ChelyabinskiteHQD (Y: 1988, rejected 1986) 07.DG.45 [no] Possibly identical to thaumasite. Churchite-(Nd)D (Y: 1983, IMA1987 s.p., IMA2015-C) 08.CJ.50 [no] DieneriteD (Y: 1944, discredited 2006) 02.?? It was reported as microinclusions in a sobolevite grain, Norilsk deposit (2006). Ferrorhodsite (spinel, linnaeite: IMA1996-047, discredited 2018) 02.DA.05 [no] Fluorarrojadite-(BaNa)N 08.BF.?? (IMA2005 s.p., red.) [no] [no] FoshallasiteD HeliophylliteD (Y: 1888) 03.DC.65 ImgreiteD (discredited 1968) [no] NatrofairchilditeD Probably nyerereite. Pseudo-autuniteD (Y: 1965) [no] SchirmeriteD (Y: