American Mineralogist, Volume 68, pages 849-852, 1983 NEW MINERAL NAMES* PETE J. DUNN, LOUIS J. CABRI, ANDREW M. CLARK AND MICHAEL FLEISCHER Chlormagaluminite* strong with pleochroic colors dark reddish-orange and light pinkish orange. A. A. Kashaev, G. D. Feoktisov, and S. V. Petrova (1982) Lotharmeyerite occurs as druse encrustations on adamite and Chlormagaluminite, (Mg,Fe +2)4Ah(OH)12(Cl, Y2C03h . 2H20, manganese oxides which are cryptomelane in part. It occurs at a new mineral of the manasseite-sjogrenite group. Zapiski the Ojuela Mine, Mapimi, Durango, Mexico. The name is for Vses. Mineralog. Obsh., Ill, 121-127 (in Russian). Julius Lothar Meyer (1830-1895), a German chemist who devel- Analysis by N. G. Tashkina gave MgO 30.84, FeO 4.10, oped many of the concepts incorporated into the periodic table. MnO 0.05, Ti02 0.20, Fe203 1.15, Ah03 21.20, Na20 0.36, Type material is in the Smithsonian Institution. P.J.D. H20+ 27.19, H20- 5.20, Cl 11.31, C02 1.10, sum 102.70 - (0 = Ch) 2.55 = 100.15%. This corresponds to (Mg3.3sFet~7 N ao.osh.87(Al .93 Fe6:67 Tio.olh.01 (OH) 12[CII.48, Y2(C03)O.24] 1.72 . Monazite-Nd 2.42H20. Z. Masksimovic, and Gy. Panto (1980) Bastnasite-(La) and Weissenberg, oscillation, and rotation photographs showed monazite-eNd), a new variety of monazite, from the Marmara the mineral to be hexagonal, space group P6/mcm, P6cm, or bauxite deposit (Greece). Bull. Acad. Serbe Sci. Art, 72, #20, P6C2, a = 5.29A, c 15.46A., a member of the manasseite- = 35-42. sjogrenite group, D meas. 1.98, 2.09; calc. 2.06. The strongest X- ray lines (Fe-radiation, unfiltered) (31 given) are 7.67(10)(002), Microprobe analysis yielddt Y203 1.1, La203 16.4, Ce203 3.86(8)(004), 2.60(8)(111), 2.34(9)(113), 2.17(9)(114), 18.3, Pr203 6.0, Nd203 21.5, Sm20) 3.6, Gd203 2.2, DY20) 1.839(10)(116), 1.555(8)(118), 1.526(9)(300), 1.496(9)(302). 0.5, CaO 1.7, S03 1.4, P20S 26.8, sum = 99.5%. This yields The mineral occurs as aggregates of hexagonal dipyramids, the formula, on the basis of 16 oxygens: (Nd, Ce, La, colorless to yellow-brown, O.X to X mm. Cleavage (0001) REE)~4.o4Cao.29(P3.64So. I7)~3.81016' perfect. Optically uniaxial positive, w = 1.540, e = 1.560. It Monazite-(Nd) occurs as fine-grained 1-3 ~m pore fillings and occurs in skarns from the Kapaev explosion pipe, Angara River, fissure fillings up to 15 ~m in brindleyite in the Marmara bauxite southern Siberian Platform, associated with magnetite and chlo- deposit in Greece. rite. The name is for the composition. When first described in 1978 Discussion (Zapiski 107,321,325 (1978) (Mineralog. Abs. 31, 226 (1980», it X-ray diffraction study is needed, together with a full descrip- was called "chlor-manasseite," but the new data show it to be tion of physical and optical properties. P.J .D. different from that compound. M.F. Peisleyite* Lotharmeyerite* E. S. Pilkington, E. R. Segnit, andJ. R. Watts (1982) Peisleyite, P. J. Dunn (1983) Lotharmeyerite, a new mineral from Mapimi, a new sodium aluminum sulphate phosphate. Mineral. Mag., Durango, Mexico. Mineral. Record, 14, 35-36. 46, 449-452. Microprobe analyses yielded CaO 11.9, 11.3; ZnO 17.5, 18.3; (by Chemical analysis yielded Si02 0.83, AhO) 35.03, Fe203 0.17, Mn203 16.3, 13.4; Fe203 1.1, 2.7; As20s 45.8, 45.7; H20 MgO 0.02, CaO 0.71, Na20 3.83, K20 0.03, S03 7.33, P20S difference) 7.4, 8.6; sum 100.0, 100.0%. The second analysis = 29.10, H20+ 22.54, sum 99.60%. This yields the chemical yields the formula, based on ~ (2 + and 3+ cations) = = 3: formula, calculated on the basis of S + P + Si 12.00: (Na2.88 Cao.96Zn1.o7(Mn6~IFe6~6)(As04)1.89(OH)1.3o . 1.63H20, or ideal- = Ko.o1 Mgo.ol Cao.30)~).20 (AI16.oo Fe6.ts)~16.0S (S04h.13 (P04)9.S5 ly, CaZnMn3+(As04)(OH) . 2H20. The water content is uncer- (Si04)O.32(OH)17.4S. 20.40H20; the idealized formula is Na3Al16 tain. (S04h(P04)1O(OH)17 . 20H20. Single crystals were not found. The strongest lines in the X-ray Single-crystals were not found. The strongest reflections in tJ:1e powder diffraction pattern are: 2.557(100), 3.414(90), 3.175(90), X-ray powder pattern are: 12.63(100)(010), 7.82(35)(112), 2.912(90),2.710(80),2.822(80), and 4.94(80). 7.59(30)(111), 5.41(35)(004), 4.35(20)(005). The powder data can Lotharmeyerite forms dark reddish-orange, equant crystals, be indexed on a monoclinic unit cell with a = 13.31, b = 12.62, which are invariably twinned. The hardness (Mohs) is approxi- c 23.14A, f3 = 11.0°, with Z 2. mately 3; the streak is orange; D (meas.) 4.2. The luster is = = = Peisleyite occurs as massive, brittle, chalky material, with D vitreous. Indices of refraction are above 1.80. Pleochroism is (meas.) = 2.11 g/cm3. It is white in color with mean index of refraction n = 1.510. The darkness is approximately 3. Peisleyite was found associated with wavellite on an isolated block of rock * Minerals marked with asterisks were approved before publi- on the dumps of Tom's Phosphate Quarry, near Kapunda, South cation by the Commission on New Minerals and Mineral Names Australia, Australia. of the International Mineralogical Association. The name honors Mr. Vincent Peisley of South Australia. 0003-004 X/83/0108-0849$00. 50 849 850 NEW MINERAL NAMES Type material is preserved at the National Museum of Victoria, pyrophyllite deposit at Toyosaka, Hiroshima Prefecture, Japan. Australia. P.J .D. The name is for the locality. Type material is preserved at the National Science Museum, Tokyo. P.J.D. Phaunouxite* H. Bari, M. Catti, G. Ferraris, G. Ivaldi, and F. Permingeat Unnamed CaAI407 (1982) Phaunouxite, Ca3(As04h . 11H20, a new mineral strict- ly associated with rauenthalite. Bull. Mineral., 105, 327-332. M. C. Michel-Levy, G. Kurat, and F. BrandsHitter (1982) A new calcium aluminate from a refractory inclusion in the Leoville Wet-chemical analysis yielded CaO 28.2, As20s 39.0, H20 carbonaceous chondrite. Earth and Planet. Lttrs., 61, 13-22. 31.5, corresponding to Ca3(As04h . IIH20, which was con- Microprobe analysis yielded Si02 0.17, Ti02 0.10, Al20 78.1, firmed by structural study. At room temperature, phaunouxite Cr203 < 0.02, FeO 0.63, MgO 0.04, CaO 21.0, sum 100.04%, dehydrates slowly to rauenthalite. = which is close to stoichiometric CaAI407. This compound occurs _X-ray study showed phaunouxite to be triclinic, space group as 5-10 JLmhighly birefringent blebs enclosed in gehlenite within PI with a 12.563(7), b 12.181(6), c 6.205(4)A, a = = = = the meteorite given in the title. This phase was previously 88.94(3), f3 = 91.67(3), y 113.44(4)°, Z = = 2. The strongest lines described from the "mottled zone" in Israel by Gross (see Am. in the ](-ray powder diffra~ion pattern ~re: 11.49(10)(100), Mineral., 63, 425-426). P.J.D. 6.~3(2)(2~0), 5.42(8)(011,101 ,OIl), 3.276(9)(231,310), and 2.443(7) (132,530,302). Phaunouxite occurs as vitreous, colorless, acicular 1.5 mm crystals, often in fan-shaped aggregates. Forms present are {tOO} Unnamed Cat-xTht-xRE2x(P04h . 2020 and {010}. D (calc.) = 2.275, (meas.) = 2.28(2). Optically, H. Kucha and A. Weiczorek (1980) Cat-x Th1-xRE2x phaunouxite is biaxial, positive, 2V = ~80° with indices of (P04h . 2H20, a new mineral from Lower Silesia, Poland. y refraction a = 1.532, f3 = 1.542, and = 1.556. Phaunouxite was Mineral. Polonica, 11, 123-136. found in two parts of the Gabe-Gottes vein, Sainte-Marie-aux- Mines, Vosges, France. It is associated with ferrarisite and X-ray study of an undescribed mineral with the above general aragoni te. composition showed it to be orthorhombic, with a = 6.67, b = The name is from Phaunoux, the French name for the 12.06, and c = 6.46A. This compound is suggested to be related Rauenthal Valley in Vosges. Type material is at the University of to ningyoite. Electron diffraction data are given. P.J.D. Strasbourg, Ecole Nationale Seperieure des Mines, and Museum de Histoire, in France, and the University of Torino, Italy. Discussion Unnamed Ca-CI-borate = ekaterinite Phaunouxite was previously described by Bari in Pierre et L. E. Shul'tse and V. T. Dubinchuk (198l) Electron-diffraction Terre, #23-#24, 101-106. P.J.D. and electron-microscopic studies of a new mineral, calcium chloroborate. Rentgen. Mineral. Syr'ya Stroenie Mineralov, 45-51. (translation of abstract in Ref. Zh. Geol. (1982), ab- stract #3v392 (in Russian). Tobelite* s. Higashi (1982) Tobelite, a new ammonium dioctahedral mica. The new Ca-chlorborate, Ca2B407(Cl,OHh . 2H20, has space group P6/m with a = Mineralogical Journal (Japan), 11, 138-146. 11.86, c = 23.88A. Calculation of the crystal structure permits localization of the Ca atoms (x = 0, y = Wet chemical analyses of tobellite yielded, after corrections 0, z = 0). for impurities, Si02 48.40, 48.34; Ti02 0.02, 0.30; Ah03 36.27, 37.87; Fe203 0.57, 1.02; MgO 0.52, 0.11; CaO 0.00, 0.00; Na20 Discussion 0.04, -0.01; K20 2.30, 3.25; (NH4hO 3.51, 3.85; H20+ 6.40, This mineral was described as a new species, ekaterinite, in 4.96, H20- 1.97, 0.31, sum 100.00, 100.00%, for material from = 1980 by Malinko et ale (see Am.