New Mineral Names*

American Mineralogist, Volume 68, pages 471400, 1983

NEW MINERAL NAMES*

PBIB J. DUNN, MrcHnBr- Fluscnen, RocBn G. BunNs AND ADoLF Pessr

Calciotantite* hardnessapproximately 2; D meas.3.35, D calc.3.34. Claraite is optically negative, is weakly biaxial, and has indices of A. V. Voloshin,Ya. A. Pakhomovskii,and F. M. Tysheva(1982) refractione = 1.645and r,r: 1.751(10.002). Claraite is associat- Calciotantite, CaTtuOrr, a new mineral from granitic pegma- ed with malachite. azurite. and olivenite at the Clara Mine in the tites of the Kola Peninsula. Mineralog. Zhurnal, 4,75-:79 (in Black Forest. The name is for the locality. Type material is Russian). preserved at the University of Stuttgart and the Smithsonian Microprobeanalysis gave Ta2O5 91.09, NbrO5 2.E4, CaO 6.05, Institution. This mineral was originally describedin 1975as an Na2O 0.05, sum 100.037o,corresponding to (CaoseNao or) unknown(Der Aufschluss,26, 369-41l; Am. Mineral., 62, 175). (Tas80 Nb. 2s).O11or CaTaaOl1. P.J.D. The X-ray pattern (22 lines)(unfilteredFe radiation) has strongest lines 3.15(7Xll0), 3.02(10)(ttr), 2.47(6)(113,202), 1.793(7X300),1.551(7X304), 1.50E(10X222). These are very close Cuzticite*. Eztlite* to the data of Gasperin,Bull. Soc. Franc. Mineral., E6, I l5-l 16 S. A. Williams (19E2)Cuzticite and eztlite, two new tellurium (1963) for syntheticCaTaaO11. The mineralis hexagonal,space mineralsfrom Moctezuma,Mexico. Mineral. Mag.,46,257- groupP63 or P6slm, = = a 6.23,c 12.224.,D calc.7.46. 259. Calciotantite occurs as square to rectangular to hexagonal crystals0.03-0.05 mm as inclusionsin microlite or as veinlets The new minerals were found together in oxidized ores at the 0.1-0.3 mm in microlite. Colorless,transparent, luster adaman- Bambolla mine, Moctezuma, Sonora. Both occur with various tine, no cleavage.Hardness 970 kg/sq. mm,40g load; 1200kg/ iron oxides,emmonsite, schmitterite, and kuranakhite.Analysis sq.mm,20 g load. Doesnot luminescein UV light, but becomes of cuzticite by Marjorie Duggan yielded Fe2O341.1, Mn2O3 -0.42*,TeO2'H20 xno slightly blue in cathoderays. Anisotropic,reflectances 486 nm, 13.6,sum l00.2Vo valencedetermination, 16.9,16.3;551 nm, 17.0,16.6;589 nm, 17.1,16.7;656 nm, correspondingclosely to the formulaFe2Te06'3H2O. Cuzticite is lE.2,l8.lVo. yellowish, H = 3, D = 3.9, occurring in crusts with a scaly The mineral occurs in granitic pegmatites,restricted to a zone structure. The X-ray powder pattern was indexed on a hexagonal of platy albite with relicts of spodumene.Associated minerals cell, a = 5.045,c = 10.63A.Strongest lines of the powderpattern includescheelite, apatite, and sometimeswodginite. are3.246 ( I 0)(103), 2. 5 I 8(7XI 10),4.87 I (4X003),2.239(3Xl I 3) and The name is for the composition. Type material is at the l.564(3X213). MineralogicalMuseums of the Acad. Sci. USSR, Moscow, and Analysis of eztlite gave FezOt24.3, PbO 25.5,TeOz 26.8, TeO: its Kola branch,Apatite. M.F. 8.6, H2O 12.3, sum 97.5% leading to the formula Fe6Pb2 (TeO:)rTeOe(OH)r0.8H2O.Etzlite is blood red, as paper-thin sparkingcrusts, H = 3, D : 4.5. A possiblecell foqnd by the Ito Claraite* methodis monoclinicd = 6.58,b = 9.6E.c = 20.524,F = 90'l 5'. Strongest lines of the powder pattern are 3.426(10X006), (19E2) K. Walenta and P. J. Dunn Claraite, a new carbonate 3.289(10X200),4.037(9X104), 3.239(9X201). Etzlite grains are mineral (Central from the Clara Mine. Black Forest). Chemie deep cloudy orange in thin section and are not pleochroic. der Erde. 41.97-102. Estimatedindices are np = 2.14,nc : 2.15(white light). A good The mean of two chemical analysesyielded CuO 52.5, ZnO cleavage,probably (001), is always length slow with extinction 8.0, MnO 1.2, CO2 11.6, H2O 27.0 (by diference), sum : (to 7) of 3', consistentwith monoclinic(or lower) symmetry. l0/J.OVo.The chemical formula, calculated on the basis of 3 The names are derived from the Nahua language; cuzticite cations, is (Cu2.5lne.36Mn6sj(CO3)1 o3(OH)3.e4'3.E5H2O, or, from cuztic, somethingred, and eztlite from eztll meaningblood. ideally,(Cu,Zn)3Cq(OH)4.4HrO with Z = 66. Type materialis at the British Museum(N.H.) and the Universi- Single crystals were not obtained. Claraite has optical disper- ty of Arizona. A.P. sion, r >> v, which suggestsit is triclinic. The strongestlines in the X-ray powder diffraction pattern are: 13.47(10X1120), 7.84(9)t2?2), s.r7(6X3033,3250),3.65(8bX4263, $11,4134, Jeanbandyite* q, s21 3.24(5X4 r55,s I-u;cBersz1 tr* 80,7070,448 1, 5 38 t, 707 I ), A. R. Kampf (1982)Jeanbandyite, a new memberof the stottite 2.96(6)(4483,7181,2027,5165,3256,5383,7071). These difractions group from Llallagua, Bolivia. Mineral. Record, 13,235-239. are indexed on a hexagonalpseudocell with a : 26.22 and c : 2t.564. Microprobe analysis of six crystals yielded MgO 0.6t 19.24- I .27),SiO2 0.79 (0.55-0.94), MnO 5.82(4.MJ .54),F ezO 22.07 Claraite forms blue spheruleswith a perfect {10T0}cleavage; t (r9.22-24.7l), SnOz49.61 (4E. 30-5 I .59),H2O 2 I . l0 (tB.t4-22.44) by ditrerence,sum = 100.00%.Fe wasassigned as Fe3*based on xMinerals marked with asteriskswere approved before publi- microchemicaltests. This analysisis calculatedon the basisof6 cation by the Commissionon New Minerals and Mineral Names (oH) as: (Fe31lMnal2rMg35r)(Sn3**Sioo:)(OH)uwith excess of the International Mineralogical Association. charge balance assumedto be due to a small portion of the Fe 0003-0Mx83/0304-0471$0.50 471 NEW MINERAL NAMES beingpresent as Fe2*. The idealizedformula is Fe?lSnl-i(OH)o Physical description (from Perrault and Richard, 1973)shows or (Fei-1n"Xsn1-*"n")(oH)6,with 3x + 4y : 1. that steacyiteoccurs as dark brown crystalscomposed of {100} X-ray study indicatedjeanbandyite is tetragonal,P42ln (psel- and {001}in a three-dimensionalcruciform habit. The hardnessis docubic)witha = c =7.6484,2= 4,D calc.= 3.81,Dmeas.: 5; no cleavageobserved; D calc. 3.32,D meas.2.95 (on porous 3.81.The strongestlines in the powder pattern(22 given ) are: material); radioactive. Steacyite is uniaxial, negative, with e = 4.41(20)( l l r), 3.83(100)(200),2.7 r(70)(220), 1.9l 2(20x400), 1.572,ot = 1.573.Steacyite occurs with nenadkevichite,anal- 1.710(60)(420),t.s62(3s)(422). cime, and acmite in pegmatite veins in the nepheline syenite of The mineral occurs as 0.2 mm pseudo-octahedralaggregates of Mt. St. Hilaire, Quebec,Canada. The nameis in honor of Mr. jeanbandyite crystals epitaxially grown on wickmanite. Forms Harold R. Steacy, curator of the National Mineral Collection present are {lll}, {001}, and {t00}. Jeanbandyiteis brown- housed at the Geological Survey of Canada. Type material is orange;streak pale brown yellow; hardness3%; cleavageis fair, depositedat the l'Ecole Polytechniquede Montreal and cotype parallel to {001} and {100}. Optically uniaxial negative, e : material at the Geological Survey of Canada.The crystal struc- 1.833(5)and r.r : 1.837(5).Jeanbandyite occurs on museum ture of steacyite was published by Richard and Perrault (Acta specimensfrom level 295of the Contactovein. Llallagua, Bolivia Cryst., B28, 1994-1999(1972)). P.J.D. and other levels ofthe mine. Associatedminerals include fluora- patite, stannite, pyrite, jamesonite, cassiterite, and crandallite, amongothers. Jeanbandyiteis a memberof the stottite group and Sopcheite* is related to wickmanite and schoenfliesite. D. A. Orsoev, S. A. Rezhenova,and A. N. Bodanova(1982) The name is for Mrs. Jean Bandy of Wickenburg, Arizona, Sopcheite,AgaPd3Tea, a new mineral from copper-nickel ores wife of Mark Chance Bandy who collected the material. Type of the Monchegorskpluton. Zapiski Vses. Mineral. Obshch., material is preservedat the SmithsonianInstitution, Harvard lll, ll4-ll7 (in Russian). University, and the Los Angeles County Museum of Natural History. P.J.D. Microprobe analysesof 2 samplesgave Ag 32.62,33.56;Pd 25.26,23.92: Fe 0.80, 2.13; Cu 0.09,-; Ni 0.03,-; Te 41.32, 42.13: Bi 0.17,-; As none, none; sum 100.29,101.74%, cor- Meta-uranocirciteII responding to the formulas (Agr 73Feq.1sCu662Nio or)Pd2 e6 (TeroaBio or) and (Agr TeFes21XPd2.7a)Fe6 25)Tea.62. A mineral of F. Khosrawan-Sazedj (1982) The crystal structure of meta- this composition was reported from Sudbury by Cabri and uranocirciteII, Ba(UO)2@O4)26H20.Tschermaks Min. Petr. Laflamme,Econ. Geol., 71, no.7 (1976),but X-ray datawere not Mitt..29. t93-204. obtainable on it. X-ray studyof0.6 mm syntheticcrystals corresponding to the The X-ray powder pattern was indexed by Akira Kato on an meta-uranocirciteII of Walenta (J. Geol. LandesamtBaden- orthorhombiccell. with a :9.645, b = 7.906,c = 11.0404.,2 = Wurttemberg,6, ll3-135 (1964)showed it to be monoclinic, 4, D calc. 9.948.The strongestlines (17 given)are 3.33(10, but Pll}/a,witha = g.78g,b:9.882,c= 16.868A,y=89.95",2: quartz present) (013), 2.70(5)(023),2.56(6X031), 2.30 4, for the formula given above.The studiedsingle crystals are (5bx4r0,r32), r.805(7bx24r, l06). yellow, rectangular, biaxial negative, with 2V : 28-40'. Partial In reflected light gray with brown tint. Anisotropic, with color chemical analysisyielded Ba = 14.7%(microprobe), H2O : efects yellowish-red to bluish. Reflectancesare given at 16wave llVo, comparedwith the theoreticalcomposition of the hexahy- lengths:460 nm, 40.3;540, 43.0; 580, 44.4;660,47.3Vo. lnternal drate which requiresBa 14.08,H2O 11.07%. reflectionsabsent. Hardness, l0 g load, 134-209,av. 170 + 35 kg/sq.mm. Discussion'.Because this phaseis monoclinic,it warrantsa full The mineral forms xenomorphic veins in chalcopyrite of the description of natural material and IMA consideration of the Sopchamassif, Monchegorskpluton. The mineral is in grainsnot speciesand the name.P.J.D. exceeding0.02 mm. It is intergrown with merenskyiteand is associatedwith chalcopyrite and mackinawite. The nameis for the locality. Type material is at the Mineralogi- Steacyite* cal Museum,Kola Branch, Acad. Sci. USSR, Apatite. M. F. G. Perraultand J. T. Szymariski(1982) Steacyite, a new name, and a re-evaluation of the nomenclature of "ekanite"-group Vuorelainenite* minerals.Can. Mineral.. 20. 59-63. G. Perraultand P. Richard(1973) L'ekanite de Saint-Hilaire,P. M. A. Zakrzewski, E. A. J. Burke and W. J. Lustenhouwer Q. Can.Mineral., ll,913-929. (1982)Vuorelainenite, a new spinel,and associatedminerals from the Siitra (Doverstorp) pyrite deposit, Central Sweden. The mineral described by Perrault and Richard (1973)as Can. Mineral.. 20. 281-290. ekanite is redefined as steacyite, Th(Na,Ca)z(Kr-.!.)SiSO2o. Chemicalanalyses yield: SiO252.18, 57.92; ThOz 26.74,2E.03:' Microprobe analysesof crystals from Outokumpu, Finland, UO2 2.47,-; FezOr0. 18,-; PbO-, 0.07; RezOr-, 0.47; CaO and Siitra, Sweden, respectively,yielded: TiO2-, 0.6; VzOr 6.00,4.92; MnO-, 1.64;MgO-, 0.17;NazO 3.53,3.36; K:O 63.3,58.3;Cr2O34.7,5.8; AlzOr-, 1.4;MnO 22.0,2'l.l;FeO 4.10, 3.42; H2O 4.40,-; sums 99.60; 100.00%.X-ray study 7.6,5.E;ZnO12.41,0.5, sum : 100.0,99.5 percent. The idealized indicated steacyite is tetragonal; space group P4lmcc, a : end memberis MnV2Oabut many grains(9 analysesgiven) have 7.58(l), c = 14.77Q)4.The strongestlines in the X-ray powder substantial Cr2O3(range 4.7-30.6Vo)in partial solid solution to pattern are: 5.30(45)(102),3.38(100)(202), 3.32(55)(104,211), manganochromite.Vuorelainenite is the vanadium analogueof 2.64(4t) (2M), 2.00(26)(322,314), r .82r(20)(23 4,41 t). manganochromiteand the manganeseanalogue of coulsonite.

0003-004)v83l0304-0472$0.50 NEW MINERAL NAMES 473

X-ray study of fragments yielded powder difraction data Unnamed Pb-Ti-Fe-Re-oxide which are indexed on a cubic cell with d : 8.48(5)4. The H. Sarp, J. Bertrand, J. Deferneand B. W. Liebich (1981)A strongestlines are: 2.985(4)(022),2.559 ( I 0XI I 3), 2.I I 8(3X004), complex rhenium-rich titanium and iron oxide of the crichton- 1.633(8)(l 15,333),| .502(8)(044).Vuorelainenite occurs as euhe- ite-senaitegroup Neues Jahr. Mineral. Monat., 433-442. dral, 5-80 /rm grains which are opaqueand have a brownish gray reflectancecolor. Hardness (VHN) is 900; D calc. : 4.64. The mean of 4 microprobe analysesemploying different stan- Reflectancesin air are (nm, Vo):470, 15.7;546, 15.4;589, 15.6; dardsyielded: TiO2 58.09, MnO 0.89,FeO 21.95,SrO 4.39, YzO: 650,16.2. 2.49, ReO2 2.63, PbO 9.E4, sum : 100.28%.This yields the Vuorelaineniteis found at the contactsbetween pyrrhotite and formula, calculated on the basis of 38 oxygens, (Pb667 gangueand also betweenpyrrhotite, rutile and pyrophaniteat the 516s3Yq a3)12.13 (Ti1a_a3Fe6 65Re6 23Mn6 23)126 eaO3s, with Z : 3. Sdtra Mine, in Central Sweden.It was also describedpreviously X-ray study indicated this mineral is trigonal, spacegroup R3, from Outokumpu,Finland by Long et al.,1963 (Am. Mineral., with c = 10.44and c : 20.824 on a hexagonalcell. It forms 48,33-4t). A second occurrence of schreyerite is at the Siitra hexagonalcrystals, flattenedon [001], up to 1.0 mm in size, mine and analysesare provided. opague,black, with metallicluster. D meas.= 5.0, calc. = 5.02. Vuorelainenite is named in honor of Yrjo Vuorelainen, former Hardness(Vickers) is l100-1185VHN. In plane-polarizedre- exploration geologistwith the Outokumpu Company and discov- flected light, the mineral is cream,white to white; under crossed erer of the Outokumpu material. Type material is preserved nichols it is isotropic to weakly anisotropic with brown to blue- (#1534.4)at the Free University in Amsterdam.P.J.D. gray reflectance colors. Uncalibrated reflectivity values range from 17.5-19.7Vo. This speciesis consideredto be a member of the senaite- Unnamed Ag-Au-Hg alloy crichtonite group or in solid solution betweenthese minerals and K. Basu,N. Bortnykov, A. Mookherjee,N. Mosgovaand A. L magnetoplumbite,The substantialdifference is in the presenceof Tsepin(1981) Rare mineralsfrom Rajpura-Dariba,Rajasthan, two large cations; senaitegroup minerals have only one. P.J.D, India II: Intermetallic compound Ag7a2Au16,aHgeaNeues Jahr. Mineral. Monat., l4l, 217-223. e-Mn02 Electron microprobe analysesof l0 spots in one crystal F. V. Chukhrov,A. N. Gorshkov,A. V. Sivtsov,Yu. P. Dikov yieldedAg 61.5f, Au 24.7E,Hg 14.47,sum = 100.76%,which and V. V. Berezovskaya(1982) A natural analogueof e-MnO2. yields Ags.Ta2AuotonHgoos+. This phasewas found at contacts Izvest.Akad. Nauk S.S.S.R.,Ser. Geol., l, 56-65. between galenaand owyheeite as grains about 200 pm with high reflectivity and polishing hardness greater than galena. Grain The natural analogueof e-MnO2,manufactured for the battery size limitations precluded X-ray study. The samples are from industry by electrolytic deposition from aqueous Mn(II) salts, Rajpura-Dariba,Rajasthan, India. P.J.D. has been identified by electron microscopy in the Akhtenskii limonite depositsof the southernUrals. The e-MnO2occurs with psilomelane,together with nsutite, pyrolusite or UnnamedHgNH2NO3 cryptomelane, polymorphs of todorokite, as aggregatesof small platey particles R. C. Rouse, P. J. Dunn and D. R. Peacor (1982)Mercury dark gray or black in color. Electron microdiffraction patterns amidonitratecrystals from Colorado. Mineral. Record, 13, yielded the hexagonal unit cell data a = 2.85, c = 4.484; P6tl 233-234. mmc (C6lmmc). X-ray energy dispersive analyses showed the natural e-MnO2 to be pure MnOz (c.f pyrolusite and ramsdel- Crystalsof mercury amidonitrate,HgNHzNOr, were identi- lite), while X-ray photo-electron measurementsdemonstrated fied on the basis of wet chemical analysis which yielded 72 the presence Mna+ and the absenceof H2O and OH- weightpercent Hg and the presenceof N in two valencestates, of only pattern together with a characteristic X-ray powder ditrraction pattern. ions. The electron diffraction of e-MnO2 more closely resembles (&FeOOH) vernadite The strongest lines in the difraction pattern, which unambig- that of feroxyhyte than does the (the impure &MnOz polymorph) diffraction pattern. It is suggest- uously identify the compound, are: 2.953(100)(222), ed that vernaditeis an extremely disorderedvariety of natural e- 7.24(80X0l l ), 5.92(80)(lI t), 3.412(60X t22), 2.74t (60)(t23), MnO2. The formation the Akhtenskii is 2.562(60X004), 2. 487(60)(223,01 4). The crystals were reportedly of e-MnO2 in deposit associatedwith the supergenealteration of Mn-bearing siderite found in the 600 level of an unnamedmine in Pitkin County, in the absence of manganese-oxidizingmicroorganisms, the Colorado, where they were associatedwith silver and a likasite- presenceofwhich favor the formationofvernadite. The authors like mineral.The crystalsoccur as light yellowishgray euhedra also report e-MnO2 occurring with nsutite in the deposits of with {lll} and {ll0} as the only forms. There is no apparent Urbanus, Eizengans, East Germany and in the Gumeshevskii cleavage,but somecrystals exhibit a radialtexture. The density deposit is 5.03meas. and 5.15 calc. in the Urals. R. G. B. The crystals may have formed from the decomposition or reaction of mining explosives, in particular cellulose nitrate, Unnamed Pb-Mo sulfide [C6H7O5(NO])31.,used in dynamite, and mercury fulminate, M. A. Zakrezwski, Hg(CNO)r, usedin older dynamitecaps. E. A. J. Burke, and W. J. Lustenhouwer (1982)Vuorelainenite, a new spinel,and associatedminerals A crystalstructure analysis of thesecrystals by Randallel a/., from the Siitra (Doverstorp) pyrite deposit, central Sweden. (19E2)Journal of Solid State Chemistry, 42, 221-226,confirmed Can. Mineral.. 20. 281J90. that this compound is cubic, space group P4]2 or P432 with : a 10.2544.The compound was not named becauseof the Microprobe analysis of a 3 /rm grain in ullmannite yielded S likely unnatural occurrence. P.J.D. 25.3,Mn 0.1,Fe 3.7,Pb 37.1,Bi 6.3,W 6.2,sum :94.5Vo.The

0003-004x/83/0304-M73$0. s0 474 NEW MINERAL NAMES

optical properties are similar to those of molybdenite. The data tions, 221, 154-157(translated from Doklady Akad. Nauk suggest a structure analogous to those of castaingite, CuS sssR, 221, 699J02 (1975)). . 2MoSz,femolite, FeS . 5MoSzand severalother phases.P. J. D. Study of lovdarite from the same pegmatite vein as type material, after comparison with type material by X-ray powder NEW DATA methods, indicated that lovdarite is orthorhombic, space group P2r,with a = 78.88,b6.9landc:7:154. Arelatedpseudocell hasc = 39.44,b : 6.91,and c = 3.5EA,space group P2 pm. The Ekanite previousabstract is in Am. Mineral., 59,874.P. J. D. J. T. Szymanski,D. R. Owens,A. C. Roberts,H. G. Ansell and G. Y. Chao (1982)A mineralogicalstudy and crystal-structure determination of nonmetamict ekanite, ThCa2SisO26.Can. Loveringite Mineral.. 20.65J5. Mohsite discredited = crichtonite Nonmetamict ekanite from the Tombstone Mountains, Yukon P. R. Kelly, I. H. Campbell,I. E. Grey and B. M. Gatehouse Territory, Canada, was studied by X-ray methods and found to (1979)Additional data on loveringite(Ca,REE)(Ti,Fe,Cr)zrOrs be tetragonal,space group 1422 with a :7.483(3) and c : and mohsitediscredited. Can. Mineral.. 17.635-638. 14.E93(6)A.The X-ray powder pattern correlates with that of Loveringite thermally recrystallized type ekanite. The compoundsformerly Additional data for this mineral, the structure of which was "ekanite", with spacegroup P4lmmc, are now refened to as but published previously (Am. Mineral., 63, 2E-36) indicates that considered different from ekanite and are discussed in the loveringite occurs as anhedralto acicular crystals up to 100/rm' descriptionof steacyite(Can. Mineral. 59-63.).P. J. D. ,20, which are black, opaque,with metallic to submetallicluster. The hardness(Vickers) is 421-464; D calc. 4.42. In reflected light, loveringite is grayish white with reflectancesin white light of Galkhaite lTVo in air and 5.9Voin oil. The strongest lines in the X-ray T. T. Chen and J. T. Szymanski (1981)The structure and powder ditrrection pattern are: 3.384(87)(022),3.037(93X1 l3), chemistry of galkhaite, a mercury sulfosalt containing Cs and 2.129(68)(104),1.79 | (7r)(2rs), I .58e(e2x145), 1.433(I 00X3T4). Tl. Can.Mineral.. 19. 57t-581. Crystallographic and compositional data are repeated from the cited structure paper. Microprobe analyses of 47 crystals showed the presenceof Mohsite essentialCs and leadsto the formula (Hg,Cu,Zn,Tl,Fe,n)o(Cs, Analysis of neotype mohsite shows that it contains Pb and Sr, Tl,!)(As,Sb)+S'2in whichthe Cs contentvaries from 0.33to 0.98 but negligible Ca, indicating that it is not the Ca-rich member of per 12S. The formula is verified by a crystal structure determina- the crichtonite group, but an intermediate member of the sen- tion. Galkhaite is isometric, space grotp I43m with c = aite-crichtonite series.P. J. D, 10.365(3)4.Thallium is presentin all analysesand is distributed over two sites.The studiedmaterial (21 analysesgiven) is from the GetchellMine, Humboldt County, Nevada.The paperdis- cussesother occurrences,analyses, and type material.P, J. D. Mooreite R. J. Hill (1979)Crystal data for mooreite.Australian Mineral., 26,126-128. Killinite R. J. Hill (1980)The structureof mooreite.Acta Cryst., 836' R. Nawaz (1981)Killinite: a re-examinationof its status as a 1304-13r l. mineralspecies. The Irish Naturalist'sJournal, 20,120-122. Microprobe analysis of mooreite from Sterling Hill, New Optical examinationof material from the type locality showsit Jersey,yielded MgO 26.75,ZnO 23.99,MnO 9.76, SO3 11.60' : to be biaxial negative,with indicesofrefraction a = 1.545,F: }J2O27.90 (by ditrerence), sum rcO.00%.This yields the new ' 1.561,7 = 1.565;2Vlow to medium;optic planeparallel to (010); chemical formula Mge rcZnaqaMnlse(SOa)2(OH)ru H2O with Z X normal to (001).X-ray study shows killinite to be a lM di- -1 octahedralmica and the calculation of three analyses(not given) Crystallographic study indicates that mooreite is monoclinic, : confirmsthese observations and indicatesa closerelationship to P21la with a = ll.l47(3), b = 20.350(6),c = E'202Q)4, I hydromuscovite-illite. Killinite is stated to be a variety of 92.69(4)".The crystal structure was refined to R : 0.060.P. J. D' muscovite. Discussion: Although the given data do indicate the studied samplesare quite similar to hydromuscovite, additional analyti- Pitticite' Yukonite cal work is needed to establish this relationship firmly and discredit the speciesformally. P. J. D. P. J. Dunn (1982)New data for pitticite and a secondoccurrence of yukonite at Sterling Hill, New Jersey.Mineral Mag., 46' 261-264. Lovdarite Pitticite A. P. Khomyakov, E. I. Semenov,A. V. Bikova, A. A. Microprobe analyses of 7 pitticites from various localities Voronkov, and N. N. Smol'yanikova(1975) New data on indicate that it is a gel-like mineral of widely varying composition lovdarite. Doklady Akad. Nauk SSSR, Earth ScienceSec- with no apparent stoichiometry. Previously reported minor

0003-004)083/0304-0474$0.50 NEW MINERAL NAMES. BOOK REVIEWS 475

amounts of Si, Ca, P and Al are constituentsof pitticites but are dark red, remnant pseudomorphs after koettigite-parasymple- non-essential.Pitticite is retained as a generic name for amor- site, associated with ogdensburgite. Microprobe analyses (2) phous, gel-like, ferric iron arsenateminerals ofvarying chemical yielded:SiO2 0.6, 2.2; AlzOt0.8, 1.0; Fe2O3 28.8, 28.E; MgO 0.4, composition. 0.6; CaO 10.4,10.4; MnO 2.1, 2.2; ZnO 3.3, 3.8; As2O532.1, Yukonite 39.1;SO3 0.2,0.2; HzO (by difference)19.7,12.5; sum = 100.0, Yukonite is reported from a secondoccurrence at the Sterling 100.0 percent. Pitticite has a weak X-ray powder diffraction Hill Mine, Ogdensburg,Sussex County, New Jersey, where it pattern with strongestlines 5.60(8),3.25(10), 2.79(8), 2.52(3), occurs as gel-like, waxy aggregatesof brownish color and as 2.33(3),2.23(3), 1.63(4b). P. J. D.

BOOK REVIEWS

CRYSTALLOGRAPHY: AN INTRODUCTION FOR EARTH factor, multiplicity, Lorentz, polarization, elc.). Chapter l5 SCIENCE (AND OTHER SOLID STATE) STUDENTS. By gives an overview of structure determination using rutile as an E. J. W. Whittaker,Pergamon Press, Oxford, 1981.xii + 254 example. Other topics include electron diffraction (Chapter 16) pages.$19.95 soft cover. and crystallographicaspects of twinning, polytypism and crystal defects (Chapter l7). As noted in the Preface by L. G. Berry, this book is divided The development of the 14 Bravais lattices (Chapter ll) and into two parts correspondingto a two course sequenceoffered to space group concepts including screw axes and glide planes undergraduatesat the University of Oxford. Part I (Chapters l- (Chapter 14), are also reserved for Part II. By covering these 7) deals with the more classical aspects of crystallography topics after the student has been exposed to X-ray ditrraction, whereas Part II (Chapters 8-18) considers the crystallographic the author is able to stress the application of systematicextinc- applications ofdiffraction. Each chapter includes a problem set tions to lattice group for which answers are provided. and space determinations. In summary, this book is a well organized,concise and clearly Many basic conceptsare developedrapidly, though clearly, in written introduction to both "classical" and "modern" crystal- the first four chapters (p. l-36). Starting with the analogy of lography. It should serve as an excellent text for any two course stacking bricks to the formation of a euhedral crystal, the introductory sequencein crystallography similar to the Oxford concepts of axes, axial ratios, interaxial angles and interfacial University format. anglesare introduced. Building on this analogy, the conceptsof translational symmetry-repetitive patterns and simple lat- M. W. Pnrllrps tices-and the unit cell are developed. Next, symmetry opera- University of Toledo tions (reflection, proper rotation and roto-inversion) and their relationship to crystals and unit cells are explainedand combina- MINERAL DEPOSITS OF EUROPE, VOLUME 2: SOUTH- tions of symmetry operationsare usedto define the sevencrystal EAST EUROPE. Edited by F. W. Dunning,W. Mykura and systems.In Chapter 4 the crystallographicaxes are defined and D. Slater. The Mineralogical Society and The Institution of nomenclaturefor crystal faces (Miller indices) and zone axes are covered. Mining and Metallury, London, 1982.3O4 pages, 183figures, numeroustables. Price to membersf35 or US$87.50(including The remainder of Part I consists of stereographicprojection postage);nonmembers f42 or US$100. (Chapter 5), an introduction to crystal forms (Chapter 6) and a developmentof the 32 crystal classes(Chapter 7). This is more or An introductorychapter by W. Petrascheck(12 p., I table, 3 less standardfare; however, the author does note his preference figs.) provides a general geologicalframework and a discussion for several specific form names (ditetragonal sphenoid rather of the various periods of mineralization. This is followed by than tetragonalscalenohedron, for example).Hermann-Mauguin nationalchapters: Hungary, by G. Morvai (42 p., 15 tables,27 notation is used exclusively in Part I in preference to the less figs.);Romania, by V. Ianovici and M. Borcos(88 p., I table,74 popular Schoenflies notation which is not mentioned. part I figs.) Yugoslavia, by S. Jancovid (60 p., 7 tables, 36 figs.); concludes with a brief appendix which points out the similar Albania, by E. Pumo, V. Melo and B. Ostrosi(12 p., I table, 9 properties within each of the three sets of rotoinversron axes : figs.); Bulgaria,by B. Bogdanov(18 p.,8 figs.);Greece, by G. 2n+1,2(2n+l\ and4n. Marinos (21 p., 13 figs.); Cyprus, by Y. Hadjistavrinouand G. Perhapsthe most remarkableaspect ofthis book is the breadth Constantinou(23 p.,5 tables,l5 figs.).A concludingchapter by of topics covered in Part II. Although coverageof each topic is A. J. G. Notholt, Mineral Production and Developments in by necessity brief, the author has concisely treated each topic SoutheasternEurope (ll p.) includesextensive statistical data, with detail and rigor sufficient to provide a firm foundation from by commodityand by country, for 1960,1970,1977,1978, and which the student may choose to build. This part opens with a 1979(for Albania, Bulgaria, and Romaniamany of the figuresare discussion of the properties of X-rays and an introduction to estimates). diffraction (Bragg's Law). Chapters on the geometry, applica- This volume maintains the high standard set by Volume I tions and indexing proceduresinvolving both powder techniques (Northwest Europe) in providing excellent descriptions in En- (Debye-Scherrer,Gandolfi, Guinier) and selectedsingle crystal glish for many mineral depositsfor which little or no information techniques(rotation, oscillation) are included. has beenavailable in other than the national language.It includes A briefbut excellent treatment ofX-ray reflection intensitiesis both metallic and non-metallic deposits (fuels are not covered). given in Chapter 10. This includes developmentof the structure The volume has a large pagesize (ll ll2 x 8 inches),enabling the factor (F6kl) and the various correction factors (temperature adequate reproduction of maps and diagrams. This book is