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New Mineral Names* American Mineralogist, Yolume 65, pages 205-210, 1980 NEW MINERAL NAMES* MTCH,q'EI.FrEIscrren. J. A. MANDARINo AND ADoLF Passr Adnontite* Analysisby H. V. (spectrophotometricfor Cu, Al, SO3,Cl; H2O by Penfield)gave SO, 28.30,Cl 6.70,Cu I1.80,Al2O3 9.16, Na2O K. Walenta (1979)Admontite, a new boratemineral from the gyp- 0.13,K2O 0.05,CaO 0.18,H2O 45.40,sum 101.72(-O = Clr) sum deposit Schildmauer near Admont in Styria (Austria). l00.2l%o,corresponding to Cut ' 28.1 H2O, or TschermaksMineral. Petrogr.Mitt., 26,69-77 (n German). urAlr(SO)c"aClz 1e CuAl(SOa)2Cl' 14 H2O. The DTA curve shows large endo- Admontite is a magnesium borate found in the gypsum deposit thermic breaksat 92" and l43o and small onesat 308o,730o, and of Schildmauer near Admont in Styria (Austria) in association 1047o,ttre last correspondingto the reduction of CuO to Cu2O. with gypsum, anhydrite, hexahydrite, kiweite, quartz, and pyrite. The TGA curve showsa loss(of H2O) of 35.6Voto 100' and 9.8% Chemicalanalysis gave MgO lO.20Vo,B2O354.50Vo (by difference), more from l00o to 300". Lossof SO3occurs at about 530oto 650o. H2O 35.30Vo,corresponding closely to 2MgO . B2O3. 15HrO. The Aubertite is soluble in water. mineral occurs in poorly developed colorless crystals of mono- X-ray study shows aubertite to be triclinic, Pl, a : 6.288x. clinic symmetry, elongatedparallel to c and flattened on {100}. 0.003,D: 13.239+0.006,c:6.284+O.003,{, a :91'52', B: Cell dirnensionsare: rl : 12.68,b : 10.07,c : 11.32(all +0.024), 94"40',y : 82"27'(alltl0'), Z: I, G calc 1.83,meas 1.815. The p 109' 68+l', Z : 2, G meas1.82, calc 1.875.Strongest lines in strongest lines (70 given) are 6.25(45)(001),5.59(44X0ll), the powder pattern are: 12.08(9X100), 5.29(7)(2ll), 4.83(40X120),4.50(l00xl l r), 4.247(6e)(r0r)(r20),3.e52(58X1 l l), 3.09(6)(313,402,322), 2.68(9)(413,2o3,42r,3t2,304,0rx, 123, I 32).No 3.690(42)(12r),3. I 30(42X002),3. I I 3(40X2l0). Structuralstudy in- cleavage, fracture conchoidal, H probably 2-3; optically biaxial dicatesthe formula to be Al(H2O)5Cu(H2O)a*2(SO)2CI'2 H2O. negative,a : 1.442(2),y -- l.5M(2), 2V. - 30", plane of optic axes The minelal occurs as azure-blue crusts of corrodcd grains. normal to (010). Cleavage[010] perfect.Optically biaxial, neg.,zs (Na) c = 1.462, Admontite is slowly decomposedin water; on heating it loses B: 1.482,y:1.495,2Y :71", r > v moderate,optic axisnearly part of its water below l00o C, the rest between150 and 350' C. A.P. perpendicularto (010). The mineral was collected in 196l at Quetcna, Antofagasta Province, Chile, in the zone ofoxidation, associatedwith copiap- Alnninurn ite, amarantite, parabutlerite, and hohrnannite. The name is for J. Aubert, assistantdirector, Inst. Natl. Geophysics,France, who col- B. V. Oleinikov, A. V. Okrugin, and N. V. Leskova, (1978) Pet- lected the mineral. Type material is at the Univ. Pierre and Marie rological significance of the occurrence of native aluminum in Curie and the Ecole Natl. Superieure des Mines, both in Paris. basites. Do&/. Akad. Nauk SSS& 24J, l9l-194 (in Russian). M. F. Native Al is reported to occur in trap intrusives of the Siberian platform in Middle Paleozoic, Late Paleozoic, and Early Mesozoic Carlhintzeite* tholeiite basalts and rarely in picrite basalts, with associated P. J. Dunn, D. R. Peacorand B. D. Sturman (1979)Carlhintz€ite, moissanite and with various alloys. Electron probe analyses from a a new calcium aluminum fluoride hydrate from the Hagendorf gabbro dolerite dike of the Tsepochechnyi gave intrusive Al 98, pegmatites,Bavaria, Germany. Can. Mineral., 17, 103-105. 98; Mg 2.1, 2.5%. X-ray study gave 2.320(10), 2.010(6.7), 1.423(4.5), 1.215(6.7). Analyses of associated phases (semiquant.) Carlhintzeite is colorless with a white streak and vitreous luster; gave Al 48, Si 12, Mg 13, Cu none; and Al 70, Mg 5, Cu 27, Si D meas2.86 E/cn3, calc 2.89 g/cm3.lt is non-fluorescent.Biaxial none. (+), 2V meas77 ", c,alc78"; a : l.4ll, B : 1.416,y : 1.422.Oien- tation:X = b, c:Z: 10". Discassion The mineral occurs as tufts and bundles of crystals up to 2mm This seems extremely improbable from thermodynamic consid- long. The crystalsare elongateparallel to IIOU and flattened on erations. M.F. {001}. Presentare the forms {100} and {001} and the face (ll0). The crystals are twinned about [01]. Carlhintzeite is triclinic (pseudomonoclinic),space group Cl or Cl, a :9.48, b = 6.98,c : Aubertite* 9.30A,a : 91.14"B : 1M.85', y : 90.0', Z : 4. The strongest lines in the X-ray powder diffraction pattern are: 4.56(70), Fabian Cesbron, Daria Ginderow, Marie-Claude Sichere, and 3.69(60),3.48(100), 2.8s2(40), and 1.460(40).Because of the Helene Vachey (1978) Aubertite, a new chloride-sulfate ofcop- pseudosymmetry, the spacings could not be unambiguously in- per and aluminum. Bull. Mineral. (Soc.fr. Mineral. Cristallogr.), dexed. 102, 348-350 (in French). The averageof two closely agreeing electron microprobe analy- sesis: Al 10.2'1,Ca 29.86,F 52.1,HrO(TGA) 7.0, sum 99.23wr%. (Note by J.A.M.: Al and Ca are given as Al2O3 and CaO, *Minerals marked with asterisks were approved before pub- but these are typographical errors). The analytical data yield lication by the Commission on New Minerals and Mineral Names the empirical formula (based on 7 fluorine ions): €ate6Al6e7 of the International Mineralogical Association. F7oo.0.96H2O or, ideally,Ca2AlFT' H2O. 0003-004x/80/0 l 02-0205$00.50 205 2M NEW MINERAL NAMES Carlhintzeite occurs with rockbridgeite, pyrite, strengite, and Koritnigite* apatite on a specimen from Hagendorf, Bavaria, Germany. The P. Keller, H. Hess,P. Stisse,G. Schnorrer,and P. J. Dunn (1979) name is in honor of ProfessorDr. Carl Hintze, the compiler of the Koritnigite, Zn a new mineral from Tsumeb, Handbuch der Mineralogie. Type material is preserved at the [HzOlHOAsO3], South West Af,ica. TschermaksMineral. Petrogr. Mitt., 26,5l- Royal Ontario Museum, Toronto, and the Smithsonian Institu- 58 (in German). tioq Washington. J,A.M. Koritnigite is a hydrated zinc hydrogen arsenate with the for- mula Zn[HzOlHOAsO3]. Chemical analysis (electron microprobe Cupropavonite+ and TGA) gave:As2O5 5l.75,ZnO 35.97,H2Ol2.3%o, svm lA0.Wo. The HOAsO3 ions were determined by IR spectroscopy.Koritni- Sven Karup-Mdller and Emil Makovicky (1979) On pavodte, gite is soluble in cold dilute HCI and HNO3. The cell dimensions cupropavonite, benjaminite, and "oversubstituted" gustavite. are:a : 7.948Q), D : 15.829(5),c : 6.668(2)A,o : 90.86(2), : Bull. M ineral. (Soc. M ineral. Cristallogr. I 02, 35l-367. B fr. ), 96.56(2),y:90.05(2)', Z:8,G meas:3.54,calc:3.56. The A sample from the Alaska mine, Colorado, contained crystals of spaoe group is P T. Strongest lines in the powder pattem are: pavonite with an exsolved pavonite-like mineral, associatedwith 7.90(r0)(020, 100), 3.83(7)(210,210), 3.l6(9\(2rr,2rr,230,230), interstitial gustavite. Microprobe analysesof the exsolved mineral 2.46(6)(250,250). gaveAg 5.7,5.9;Cu 6.2,6.1;Pb 13.5,13.4; Bi 56.4,56.8;Sb 0.1, Koritnigite is colorless and transparent. There are no cuhedral 0.3; S 18.0, 17.6; sum 99.9, l00.l%o, corresponding to crystals. Cleavage {010} perfect, traces of cleavageparallel to Cur.sAgBi5Pbt25,s. [001] and [00] visible on (010]; H: 2. Koritnigite is optically Weissenbergstudy showed the mineral to be monoclinic, spaoe biaxial, positive,ZV :70(5)"; a : 1.632(2),B : 1.652(3),'t- group A/m or Cn, a: 13.45,b :4.02, c : 33.06A,similar to data 1.693(3),X : b, Z : c : 22" . lt was found on the 3 lst level at Tsu- for pavonite, but with c doubled. The X-ray pattern given (50 meb, SW Africa. It occurs in cavities in tennantite, associatedwith lines) was on a mixture of pavonite and cupropavonite, for which Cu-adamite,stranskiite, and other minerals not yet identified. calculated values are given. The name is in honor of Professor Sigmund Koritnig of Optically the mineral is very similar to pavonite, E'ith reflect- Giittingen. A.P. ance equal or slightly less.Pleochroism is weak in air, weak to dis- tinct in oil. Anisotropy strong, with colors identical for both min- erals. Etch tests negative with solutions of KOH, HgCl2, KCN, FeCl:, and HCI (l: l). HNO3 (l : l) produceda yellow-brown film; Mandarinoite* conc. HNO3 etches cupropavonite more strongly than pavonite. M.F. P. J. Dunn, D. R. Peacor,and B. D. Sturman(1978) Mandarinoite, a new ferric-iron selenitefrom Bolivia. Can. Mineral., 16,605- 609. Curetonite* The mineral is light green and has a very light green streak and S. A. Williams (1979)Curetonite, a new phosphatefrom Nevada. a vitreous to greasy luster. No cleavagewas observed;hardness is Mineral. Rec., I 0, 219-221. about 2 l/2. D meas2.93 g/cm3, calc 2.89 g/cm3. No lumines- Analysisgave P2Os2339 (av. of 3 by probe),V2Os 1.27 (av. of 2 c€noewas observed.Mandarinoite is biaxial (-), 2V 85o, a : by chem.
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