09.DE.25 [no] [no] Sodicgedritech (Y: 1997) 09.DD.05 [no] Sodicpedrizitech (Y: 2003) 09.DE.25 [no] [no] Polytypes Based on Nickel (1993). Synonyms, discredited polytypes Under construction BarbertoniteD (discredited 2011) Polytype of stichtite. ClinobaryliteD (IMA2013-E, IMA2002-015) 09.BB.15 [no] (IUPAC: Diberyllium barium sorosilicate, Si2O7) Polytype barylite-1O. ClinomimetiteD (Y: 1993) 08.BN.05 Polytype mimetite-M (discredited 2010, IMA1990-043a). Johnbaumite-MD Monoclinic polytype of johnbaumite. Lavinskyite-2O (IMA2012-028) 09.D? [no] [no] (Chemical formula: K(LiCu)Cu6(Si4O11)2(OH)4) Lavinskyite-1M (liguriaite, IMA2014-035) 09.D? [no] [no] ManasseiteD (2012, 1941) 05.DA.45 (IUPAC: Hexamagnesium dialuminium carbonate hexadecahydroxyl tetrahydrate) Polytype hydrotalcite-2H. OrthochamositeD (Y: 1951) 09.EC.55 [no] [no] Possibly a polytype of chamosite. Its formal discreditation was forgotten. It was on the IMA Master List (October 2008). Quote: "the varietal names of brunsvigite, corundophilite, daphnite, delessite, diabantite, grovesite, kiimmererite, kotchubeite, leuchtenbergite, orthochamosite, pennine, pseudothuringite, pycnochlorite, ripidolite, sheridanite, talc-chlorite and thuringite should be discarded." ParabariomicroliteD (IMA2016-C, IMA1984-003) 04.FJ.20 Polytype hydrokenomicrolite-3R. SjögreniteD (discredited 2012, 1941) 05.DA.45 (IUPAC: Hexamagnesium diiron(III) carbonate hexadecahydroxyl tetrahydrate) Polytype pyroaurite-2H. Balangeroite 9.DH.35 Polytypes: -2M and -1A. Bariopharmacosiderite 8.DK.10 Polytypes: -C and -Q. Barylite 9.BB.15 Polytypes: -1O and -2O. Berborite 6.AB.10 Polytypes: -2H , -1T , -2T Cayalsite-(Y) (IMA2011-094) 9.?? [no] [no] Polytypes: -1M, -1O Chamosite 9.EC.55 Clinochamosite Orthochamosite Chrysotile 9.ED.15 [none] Clinochrysotile Orthochrysotile Parachrysotile Clinotobermorite 9.DG.10 Polytypes: -2M and -1A . Cualstibite (IMA1983-068) 4.FM.40 (IUPAC: Pentacopper dialuminium triantimony(III) dodecaoxy hydroxyl dodecahydrate) Cualstibite-1M* (syn. cyanophyllite, IMA1980-065, IMA2012-B) Cualstibite-1T Dioskouriite (IMA2015-106) Polytypes: -2M, -2O Ericssonite (IMA1966-013) 9.BE.25 Ericssonite-2M Ericssonite-2O* (syn. orthoericssonite, IMA1970-005, IMA2010-F) Gageite 9.DH.35 Polytypes: -1A and -2M. Gersdorffite (1986 s.p. Rd) 2.EB.25 (IUPAC: Nickel arsenide sulfide) Gersdorffite-P213 (Y: 1982, NiAsS) Gersdorffite-Pa3 (Y: 1845, ) Gersdorffite-Pca21 (Y: 1982, NiAsS) Graphite 1.CB.05a Polytypes: -2H, -3R Greenalite 9.ED.15 Polytypes: -1A, -1M, -2M1, -2Å, -3R, -3Å Hilgardite 6.ED.05 Hilgardite-1Tc Hilgardite-3Tc Hilgardite-4M IlliteG [none] Polytypes: -1M , Illite1Md , -2M Ivanukite-Na Ivanyukite-Na-C (IMA2007-041) (titanosilicate) [no] Ivanyukite-Na-T (Y: 2009) (titanosilicate) [no] Kaolinite 9.ED.05 Dickite Nacrite Khinite, broad sense 4.FD.30 Khinite-3T* (syn. parakhinite, 1978-036, IMA 2008-C) Khinite-4O (syn. khinite, strict sense; 1978-035, IMA 2008-C Rd) Lamprophyllite 9.BE.25 Polytypes: -2M , -2O Moissanite 01.DA.-- ("carborundum (synthetic)") (IUPAC: silicon carbide) A large number of polytypes are known, the majority of moissanite samples are 6H and 15R polytypes. Natroalunite (Y: 1902) 7.BC.10 (IUPAC: Sodium trialuminium disulfate hexahydroxyl) Natroalunite-2c (IMA1980-095) 7.BC.10 Nechelyustovite 9.BE.55 Polytypes: -1M and -2M. Pearceite-Tac - Polybasite Series Pearceite-Tac 2.GB.15 Polybasite 2.GB.15 Polybasite-Tac Pearceite-T2ac Pearceite-M2a2b2c Polybasite-T2ac Polybasite-M2a2b2c Nomenclature change: antimonpearceite was replaced by polybasite-Tac, arsenpolybasite-221 by pearceite-T2ac, arsenpolybasite-222 by pearceite-M2a2b2c, polybasite-221 by polybasite-T2ac, and polybasite-222 by