American Mineralogist, Volume 77, pages 670475, 1992
NEW MINERAL NAMES*
JonN L. J,Annson CANMET, 555 Booth Street,Ottawa, Ontario KIA OGl' Canada
Abswurmbachite* rutile, hollandite, and manganoan cuprian clinochlore. The new name is for Irmgard Abs-Wurmbach, in recog- T. Reinecke,E. Tillmanns, H.-J. Bernhardt (1991)Abs- her contribution to the crystal chemistry, sta- wurmbachite, Cu'?*Mnl*[O8/SiOo],a new mineral of nition of physical properties ofbraunite. Type the braunite group: Natural occurrence,synthesis, and bility relations, and crystal structure.Neues Jahrb. Mineral. Abh., 163,ll7- material is in the Smithsonian Institution, Washington, r43. DC, and in the Institut fiir Mineralogie, Ruhr-Universitlit Bochum, Germany. J.L.J. The new mineral and cuprian braunit€ occur in brown- ish red piemontite-sursassitequartzites at Mount Ochi, near Karystos, Evvia, Greece, and in similar quartzites on the Vasilikon mountains near Apikia, Andros Island, Barstowite* Greece.An electron microprobe analysis (Andros mate- C.J. Stanley,G.C. Jones,A.D. Hart (1991) Barstowite, gave SiO, 9.8, TiO, rial; one of six for both localities) 3PbClr'PbCOr'HrO, a new mineral from BoundsClifl 0.61,Al,O3 0.60, Fe'O, 3.0,MnrO. 71.3,MgO 0.04,CuO St. Endellion,Cornwall. Mineral. Mag., 55, l2l-125. 12.5, sum 97.85 wto/o,corresponding to (CuStrMn3tu- Electron microprobe and CHN analysis gavePb75.47, Mgoo,)", oo(Mn3jrFe|jrAlo orTif.[nCuStr)", nrSi' o, for eight (calc.)6.03, sum 101.46wto/o, cations,ideally CuMnuSiO'r, the Cu analogueof braunite. Cl 18.67,C l.Iz,H 0.18,O to Pb.orClrrrCr.or- The range of Cu2* substitution for Mn2' is 0-42 molo/oin which for 17 atoms corresponds The min- cuprian braunite and 52-93 molo/oin abswurmbachite. H,nrOo,u,simplified as 3PbClr'PbCO3'HrO. intergrown crystals Occurs mostly as fibrous to elongateprismatic grains 6- eral occurs as subparallel, elongate (0.2-0.5 3 mm. Color and streak 50 pm long and 1-5 pm in diameter, and as subhedral mm) in aggrcgatesup to uneven fracture, imper- equant grains 5-30 pm in diameter, both in quatlz. white, luster adamantine,brittle, VHNrco: I I I (108- Opaque,black color, brownish black streak, metallic lus- fect prismatic cleavage,transparent, : D. 5.77g/cm3 with ter, brittle, vHNrr: 920(50) for synthetic material, D*" ll7), H: 3, D*"u" 5.50-5.69, 1": : bireflectant from : 4.96 g/cm3(synthetic material). In reflectedlight, gray, Z 2. In reflected light, moderately gray, colorlessinternal weak anisotropy, nonpleochroic, no internal reflection. gray to dark moderate anisotropy, values given in 20-nm steps Reflectancevalues (synthetic; SiC standard) for R, and reflection. Reflectance are for R, and R, in air R, in air arc 470 20.8,21.2; 546 19.6,20.0; 589 19.2, (SiC standard);representative values 470 13.5, 14.0,3.02, 3.311' 19.7;65018.7,19.2; in oil 4707.54,7.88;546 6.87 ,7 .16:' and in oil, respectively,are 589 12.65,13.1,2.67,2.92; 5896.56, 6.92; 650 6.24,6.58. 546 12.9,13.35,2.76,3.02; valuesfor R,, R, (illu- Single-crystalX-ray study of hydrothermally synthe- 650 12.4, 12.8,2.60,2.85. Color 13.3;)\d 477, 476; P"o/o3'5, sized material gave powder patterns similar to that of minant C, air) are Yo/o12.9, is to that of phosgen- braunite, and a Gandolfi pattern of natural material (0.62 3.7. The infrared spectrum similar indicated monoclinic sym- Cu pfu) showed only the strongestbraunite-type reflec- ite. X-ray single-crystalstudy group P2r/m, a : 4'218(2), b : tions at 2.70,2.13, 1.66,and l.4l A. Strongestlines of metry, space P2, or : 91.49(3f as refinedfrom synthetic material (0.98 Cu pfu) are 2.702(100,224), 9.180(2),c: 16.673($A, P pattern (Fe radiation). 2.350(15,040),2.133(15,235), 1.6507(30,048), 1.4159- a 114.6-mm Debye-Scherrer powder pattern 4.16(50,004), (14,264),and 1.4016(11,2.2.12),from whicha:9.406(l), Strongestlines ofthe are (60,007,026),2.29 6(80,040,1 25,106), c: 18.5a6(3),tetragonal symmetry, space group I4r/acd, 4.02(100,022),2.37 7 Z : L substitution of Mn2* by Cu2* results in a linear and 2.108(40,200). with phosgenite in a decreasein c and a nonlinear decreasein a. The infrared The mineral occurs in cavities quartz, dolomite, galena, spectrum is similar to that of braunite. vein, 15 cm wide, conlaining pyrite, chalcopyrite, and The mineral occurs in low-grade, high-pressuremeta- and minor cerussite, sphalerite, jamesonite, England. The ex- morphosed Mn-rich quartzitesin associationwith qrarlz, at Bounds Clifl Cornwall, part is water level, and the new min- shattuckite, tenorite, sursassite,piemontite, ardennite, posed of the vein at eral probably formed by reaction with seawater. The new name is for Richard William Barstow (1947-1982),Cor- * Before publication, minerals marked with an asterisk were The type specimenis in the British approved by the Commission on New Minerals and Mineral nish mineral dealer. Names, International Mineralogical Association. Museum (Natural History), London. J.L.J. 0003-004x/92l0506-0670$02.00 670 JAMBOR: NEW MINERAL NAMES 671
Coombsite* nant C (air),Yolo 15.9, 16.9;|\d475,472; P"o/o5.3, 8.9. T. Sameshima,Y. Kawachi (1991)Coombsite, Mn ana- Single-crystalX-ray study indicated orthorhombic sym- logue of zussmanite,and associatedMn-silicates, par- metry, space group Pma2, Pmam, or P2ram, s : settensiteand caryopilite, from southeastOtago, New 15.104(l),b:6.891(l), c: 5.806(1)A asrefined from Znaland.New Zealand Jour. Geol. Geophys., 34,329- a I14.6-mm Debye-Scherrerpattern (Fe radiation) with 335. strongest lines of 3.164(60,401), 3.135(60,220), 2.902(100,1 21,002), - Electron microprobe analysesgave SiO, 45.18, TiO, 2.76 6(100,5 10,22 l), and | .747 (60,313,721,531). 0.01,AlrO3 3.59, Fe asFeO 3.28,MnO 38.19,MgO 1.08, The mineral ptyg;matic-like CaO 0.03, NarO 0.08, KrO 2.19, sum 93.63 wt0/0,corre- occurs in veins of barite- calcite-jacobsite-hematite,in which it is also associated sponding to (K, o,Nooou)", or(Mn,, ,rFe, ooMgo rr)",...- with hausmannite, hematophanite, native copper, and a (Sir 6 4r All ro)r,,n, Oor(OH),0, ideally KMn, r(Si,Al),*Orr- lead molybdenum (OH),., the Mn analogueof zussmanite.Occurs as brown oxychloride. The assemblageoccurs in a manganeseore lens patchy aggregates,a few millimeters in diameter, com- at the Kombat mine, 49 km south of Tsumeb, Namibia. monly showing semispherulitic texture consisting of fi- The new name relates to the Da- mara sequence, brolamellar crystalsup to 20 pm long. D-."" : 3.0(l), D""b the dolostonesof which host the deposit. Type specimens : 3.063 g/cm3with Z : 3. Optically pale yellowish brown, are in the British Museum fNatural His- tory), uniaxialnegative, length slow, e : 1.600(l),
Gravegliaite* greenish white to lilac gray, moderately bireflectant and pleochroic, red internal reflection, strongly aniso- R. Basso,G. Lucchetti,A. Palenzona(1991)Gravegliaite, bright grains given in MnSOr.3HrO, a new mineral from Val Graveglia tropic. Reflectance values for two are (northern Apennines, Ilzly). Z. Kristallogr., 197, 97- l0-nm stepsfrom 400 to 700 nm in air and in oil. Single- 106. crystal X-ray structural study showed monoclinic sym- metry, spacegroup C2/c, a: 11.250(5),b : | 1.630(7), Electron microprobe analyses(mean of 13) gave MnO c: 6.595(5)4,0:98.16(4)", as refinedfrom a 114.6- 37.83, SO, 33.51, HrO (by difference)28.66, sum 100 mm Debye-Scherrerpowder pattern (Co radiation) with wto/0,corresponding to Mn,0,S0eeH602060o,ideally Mn- strongestlines of 8.06(80,I I 0), 5.5 8(50,200), 3.60(50,22 I ), SO3.3HrO. The mineral occursas colorlesseuhedral crys- 3.300(60,31l), 3.260(60,002), 2.948(50,31l), 2.920- tals up to 0.5 mm long, elongate and prismatic [010] {ftOl} (50,I I 2,040),and 2.655(l00,202,041). with dipyramidal termination; also as sheaflike or radial The mineral occurs with qrrartz,opal, magnesite,cin- aggregatesup to 0.2 mm in diameter. White streak, vit- nabar, mercury, and numerous other minerals, including reous luster, transparent, nonfluorescent,cleavable par- severalrare mercury-bearing species,in a small prospect allel to insoluble in HrO, soluble in strong acids, [010], pit near the abandonedClear Creek mercury mine, New D*r: 2.39 g/cm3 with Z : 4.OpIically biaxial positive, Idria District, San Benito County, California. The new a : 1.590(2), : 1.596(2), : 1.636(2),2V^.u" : 4 I (3)', P 1 name is for Lu Watters (1911-1989),mineral collector. 2V,ut,: 43o,strong dispersion. Single-crystalX-ray struc- Type material is in the National Mineral Collection ture study (R : 0.036) indicated orthorhombic symme- housed at the Geological Survey of Canada, Ottawa. J.L.J. try, spacegroup Pnma, a : 9.763(l), b : 5.635(l), c : 9.558(l) A, corresponding well with data for previously known synthetic MnSO.'3HrO. Strongest lines of the powder pattern (Gandolfi camera, FeKa) are Fe chloride : 6.83(S,I 0 l)[1""," I 00], 4.33(VS,20l, I I I, I 02)[30,98,58], E.H. Dahlberg,B. Saini-Eidukat(1991) A chlorine-bear- 3.43(VS,2 I t,202,1| 2)142,13,491, 2.7 0 4(M,3 I I )[5I ], ing phasein drill core ofserpentinized troctolitic rocks 2.666(M,203,I I 3X29,51,2.414(M,213)[5 l], and 1.726- of the Duluth Complex, Minnesota. Can. Mineral., 29, (M,231,512,422,132)13,10,7,131. 239-244. The mineral occurs in cavities along fractures that cut After severalmonths of exposureto air, numerous drill hematite- and Mn-bearing (tephroite, bementite, braun- cores from the Duluth Complex show a rusty brown, Cl- ite, hausmannite) layers of manganeseore at the Gam- bearing iron oxide alteration. The alteration originates batesa mine, Val Graveglia, Eastern Liguria, Italy. The from brown, veinlike intergrowths up to 200 pm long and layersare radiolarian cherts in an ophiolitic sequence;the 20 pm across, near or in partly serpentinized olivine more siliceouslayers along the same fractures containing grains.Electron microprobe analysesgave Fe 46.03-48.66, the new sulfite locally have chalcocite and, rarely, ala- Cl 12.99-14.17,OH (by difference)37.17-40.81, sum bandite. The new name is for the locality. Type material I 00 wt0/0,corresponding to Fe2*Cl.43-o ou (OH)r rr-, nr, pos- is in the Mineralogy Section of the Department of Earth sibly Fe3*(OH)rCl. The origin of the mineral is attributed Sciences,University of Genoa, Genoa, Italy. J.L.J. to invasion by Cl-bearing solutions during or after ser- pentinization. J.L.J. Wattersite* A.C. Roberts, M. Bonardi, R.C. Erd, A.J. Criddle, Y. Le Unnamed borate, unnarnedgadolinite-type mineral Page(1991) Wattersite,Hglrgg+z6r+6Ou, a new min- Ventura, G.C. Parodi, A. Mottana (1990) New eral from the Clear Creek claim, San Benito County, G. Della minerals in the sanidine ejecta within pyro- California. Mineral. Record, 22, 269-27 2. rare earth clastic rocks of the Roman potassic province. Rendi- Electron microprobe analysis gave HgO 93.6, CrrO, conti FisicheAccad. Lincei, Ser.9, l, 159-163. 8.7, sum 102.3 wto/o.Partitioning of Hgt* and Hg,* in the ratio 4:1 on the basis of X-ray crystal structure analysis Unnamed borate gave HgrO 72.1, HgO 18.7, CrO, 8.7, sum 99.5 wto/o, Electron and ion microprobe analysesgave CaO 1.34, corresponding to HgjtrHgfijnCr!.fi,Ou. Occurs as thin N2O329.40,1-a2O314.53, CerO3 18.63, PrrOt 4.37,Ndrol shell-like aggregatesin vugs; lesscommon as crystals,typ- 2.ll,DyrOr 0.06,ThO, 1.68,BrO3 29.56,OH (calc.for ically <0.1 mm, and as crystal aggregateson fractures; O,OH : 9) 0.08, sum 101.76wt0/0. OH was shown to crystalselongate [001], showinglarge {ll0} and {010}, be present,but carbonate,nitrate, and sulfate absent,by smallto medium {310},{130}, and {021},and numerous Raman microprobe. The empirical formula is (Ceooor- smaller forms. Color dark reddish brown. black in mass- Lao.,uProoroNdo oorDyo-oo,Tho orrCao orr)ro r.uAl, ooo- es, streak dark brick red, opaque but translucent on thin B300s(O8 e6eoHo or,), simplified as (Ce,La)AlrB3Oe.Occurs edges, submetallic luster, brittle, conchoidal fracture, as light yellow, translucent, platy crystals to 2 mm, hex- nonfluorescent,twinning ubiquitous on {100}, H : <5, agonal in outline and with a tapered, flat termination. D*6 : 8.91 g/cm3 with Z : 4.In reflected light, slightly Perfect basal and distinct prismatic cleavages,white streak. JAMBOR: NEW MINERAL NAMES 673
Optically uniaxial positive, : : a 1.703(2),e l.7ll(5). 4.55 wto/o,corresponding to (Ca,rrNaoroKo ,r)"rur- The X-ray pattern (not given) was indexed on a hexagonal (Mnr, ,rCuour)"ro oo(Sir, ,rAlo rr)"oo oo. Occurs as greenish : : cell,a 4.610(l), c 9.358(8)A. ttre mineral occursin white flakes in fan-shapedclusters 5-7 mm in diameter. a sanidine-linedvug in syenitic ejectum from the Sabatini White streak, vitreous luster, translucent, brittle, perfect volcanic complex, Sacrofanocaldera, Latium, Italy. pinacoidal cleavage,and a parting at 60. angles.Optically biaxial,6 : 1.605, : 1.607,2V: 20-24. The X-ray Gadolinite-type mineral 7 powder pattern (not given) has 14 peaks,of which the only The mineral occurs as multiply twinned blue crystals, three appreciably above background are at 12.52(100), mainly 0.1-0.3 mm long, that form rounded short pris- 3.14(20),and 4.18(10)A. X-ray single-crystatsrudy gave matic aggregates.Electron and ion microprobe analyses orthorhombic symmetry, spacegroup P nam or Pna,lsicf, a: 16.782,b : 13.370,c: 25.090.The mineral occurs with parsettensiteand nambulite in a fragment of chert from the abandoned Molinella manganesemine near Chiavari, Liguria, Italy. J.L.J.
dimensions calculated from a Gandolfi powder pattern aremonoclinic, a:9.85, b:7.68, c: 4.77A, 6 : 90.6'. Na-K-Fe silicate The pattern is similar to that of minerals in the gadolinite R.K. Rastsvetaeva,O.Yu. Rekhlova, A.P. Khomyakov group. The mineral occurs in a specimen of sanidinic (1991) Crystal structure of a new natural Na,I(Fe-sil- ejecta near the shore of Lake Vico, Latium Italv. J.L.J. icate. Kristallografiya, 36(4), 89 2-897 (in Ruisian). Electron microprobe analysis (not given) corresponds OH-bearing cancrinite to Na4K(FeAjMnorTio oMgo,)",,SirOrr. nH2O where r : -7. Elongatealong c, cleavages{100} and |0l0]r, H:2- 3, D-.." : 2.75, D" r" : 2.69 g/cm3with Z : l. Optically biaxialpositive, a : 1.569,0 : 1.574,t : 1.590,2V : 58'. X-ray structural study (R : 0.04) gave triclinic sym- metry, spacegroup Pl, a: 10.244(2),b : 11.924(3),c : 5.276Q) A,a : I 03.49I (2), P : g6.960(3), r : 9 1.945(3)". The mineral occursin ultra-agpaitic pegmatites and hy- The structural formula is [Na.Kr(HrO)4]{[Mr(OH)r] drothermalites in the Lovozero alkaline massif, Kola [Si8Or0(OH)r]]where M: Fe2*,Mn, Ti, Mg. The mineral Peninsula,USSR. Chemical analysis is reported to have occurs in the Lovozero alkaline massif, Kola Peninsula. given the empirical formula (Na, ouCao , u Ko ,o Mgo o, - USSR. J.L.J. Feoo)"r rr(Aluo3si5 er)rr2 ooO2o(OH)r r(CO3)o ru. 2.3HrO. The infrared spectrum shows weakenedabsorption bands at 1375and 1460 cm-' in accordancewith the relatively low New Data carbonatecontent, whereas bands at | 620,35 13, and 35g0 cm-l, which are assignableto OH and HrO, are stable or slightly increasedin intensity relative to carbonate-rich 6-Alr03 cancrinite. Optically positive. Single-crystalX-ray study H. Saalfeld,W. Guse (1991) The mysterious"D-AlrO3." (R : 0.03) indicatedhexagonal symmstry, a: 12.74(3), NeuesJahrb. Mineral. Abh., 163, 159-167. c: 5.182(2)A; spacegroup of the tetrahedral framework and the fairly stable extraframework atoms is p6r, and A new cubic alumina phase(o-AlOr) with a spinel-type that of the "mobile" extraframework OH, COI-, and HrO structurewas synthesizedand describedby Guseand Saal- is P3. The structurally derived formula correspondsto feld in 1990(Neues Jahrb. Mineral. Mon.,217-226). The NarAl.SiuOro(OH),. (COr). r. 6HrO. J.L.J. basic structure consists of a cubic closest packing of O, with the cations in tetrahedral and octahedralsites. X-ray and electron diffraction studies of newly synthesizedma- terial indicate that in o-AlrO3 the Ganophyllite-type mineral cations completely oc- cupy the tetrahedral sitesand fill the octahedralpositions parodi. A. Mottana, G. Della Ventura, G.C. G. Guidi to 830/0.Deformation of the closest-packedO array leads (1990)A calcianmember ganophyltite of the group in to X-ray satellites(tetragonal symmetry) surrounding the the.manganiferous metacherts of Molinello mine, Li- spinel reflections;in particular conditions the spinel-type gula, Italy. Rendiconti Fisiche Accad. Lincei, Ser. 9, l, 3r3-3r7. reflectionsdisappear, and those ofthe satelliteshave been found to match well the published d values for 6-A110r. Electron microprobe analysesshowed two distinct pop- It is concluded that 6-4.110,is not an independent phase ulations, one with Ca > Na > K, and the other with Ca with a distinct symmetry and crystal structure but is prob- > (Na + K); results for the latter are CaO 1.89, NarO ably only a special disordered domain structure of o-Al2Or. 0.61,I(rO 0.15,MnO 34.82,CuO 1.09,SiO, 45.14,Al2O3 Discussion. The report of a natural occurrenceof d-Al,O. 674 JAMBOR: NEW MINERAL NAMES
(R was abstractedin Am. Mineral. 77, p. 210 (1992); the new ical ofa saturatedhydrocarbon. X-ray structure study data indicate that the Dphase now becomesthe o phase. : 0.068) of a crystal obtained by slow evaporation of a J.L.J. solution of dinite in ethanol gave orthorhombic sym- metry, spacegroup P2t2,2,, a: 12.356(4),b : 12.762(4), c : 11.427(I A. A Gandolfi pattern of natural material Ardennite (CuKa radiation) gave strongestlines of 8.92(ms,1l0)' I I 1), 5.53(vs,02l), 5'06(vs,I 2l), ar'd M. Pasero,T. Reinecke(1991) Crystal chemistry,HRTEM 8.32(ms,I 0 l), 7.00(s, pattern artificially analysis and polytypic behaviour ofardennite. Eur. Jour. 4.02(ms,122,130);a Gandolfi of the Mineral.,3, 819-830. recrystallizedmaterial gave the same result. The mineral was originally named for ProfessorDini, ardennite is (Mn,Ca,Mg)o- The ideal formula of who found the mineral. The type specimenis in the Museo HRTEM and [(Al,Fe3*),Mg](AsO.XSiOo)'(Si3O,0XOH)6. di Storia Naturale e del Territorio, University of Pisa, of ardennite specimens electron microprobe examination Pisa, Italy. J.L.J. from Haute-Maurienne, French Alps, showed no anom- alies, whereasthose from Ewia (Eub0a) Island, Greece, showedthat 65-930/oof the (AsOo)tetrahedron is occupied Kuznetsovite by Si. The Evvia mineral shows an intergrowth of the L.P. Solovyeva, S.V. Tsybulya, V.A' Zabolotnyi, N.A. standard 18.5-A structure (c dimension) with abundant Pal'chik (1991) Determination and refinement of the polytype. J.L.J. lamellae of a 37-A structureof kuznetsovite,from powder-diffraction data. Kristallografiya, 36 (5 ), | 292- | 294 (in Russian). Chestermanite Refinement of the structure from 5l powder diffraction lines(ditrractometer, Cu radiation) gavea: 8.4013(2)A, V. Alfredsson, J.-O. Bovin, R. Norrestam, O. Teresaki group P432, P43m, P4,32, P23, ot P2,3. (1991) The structure of the mineral chestermanite, space Pm3m, new stnrctur- Mgr.rrAlo.ouFeo.43Ti0.0rsbo.,3orBo3.A combined single- The original formula was HguAsrClrOn;the crystal X-ray and HREM study. Acta Chem. Scand., ally derived formula is Hg.Cl[AsO4]. J.L.J. 45.797-804. : X-ray structural study (R 0.043) basedon nondiffuse Rinkite reflections gave orthorhombic symmetry, space group B.E.Borutskii, A.V. Shlyukova(1991) Pbam, a: 18.525(4),b : 12.272(2),c : 3.0218(4)A, R.K. Rastsvetaeva, Crystal structure of Hibbing rinkite. Kristallosrafiya, structurally isotypic with orthopinakiolite. The compo- 36(r,632436 (in Russian,English translation in Soviet analysis;the sition in the title is that by energy-dispersive Phys.Crystallogr., 36(3), 349-351). composition obtained by X-ray study is (Mg,Al)roro- : (Fe,Ti)o.ruSbo'2.O2BO3.The main source for the diffirse X-ray structure study (R 5.020/o)of single-crystalrink- superlatticereflections, which led to the previous doubling ite from the Hibbing feldspar-aegirinepegmatite, Khibiny of the c parameter, is interpreted to be ordering between massif, USSR, gave monoclinic symmetry, space-group : Sb and (Mg,Al) at the Ml position, within domains of the P2,,a: 5.679Q),b:7.412(3), c: 18.835(6)A, a : : structure. J.L.J. 101.26(3)",D-""" 3.29(3),Dur.: 3.36 g/cm3wfih Z 2. An electron microprobe analysis (not given) corresponds to (CarrNar..REEo.rSro ,r)", or(Tion2Nb0,o5- Dinite Zroor)rr'r(Si38ro,o)OrrFr*where REE : CeorrrNdorn- The structural formula is L. Franzini, M. Pasero,N. Perchiazzi(1991) Re-discovery Lao.,oYoonProorSmoor. Ca does and re-definition of dinite, CroHru,a forgotten organic (Ca,REE)o{Na(Na,Ca),F(O,D}{TiF(O,DlSi,O?1,}. mineral from Garfagnana,northern Tuscany,Italy. Eur. not occupy an independent position, resulting in a low- Jour.Mineral., 3, 855-861. ering of symmetry from the spacegroup P2r/c Ihathas been reported previously for rinkite. Dinite, a name which has lapsed into obscwity, was Discussion. See the discussion for nacareniobsite-(Ce) originally describedin 1852 as an organic mineral from in Am. Mineral.,76, p. 708 (1990).The generalformula a thin ligrrite deposit in the Garfagnana Valley, northern for Hibbing rinkite is analogousto that given for naca- Tuscany, Italy. The original sample was rediscoveredin reniobsite, but differs substantially from that ofrinkite in the collections of the Museum of Natural History at the Fleischer's Glossaryof Mineral Species(1991). J.L.J. University of Pisa; a new chemical analysisgave C 86.77, H 13.44, sum 100.21 wt0/0,corresponding to CroHrun,, ideally CroHr..The new analysisis in good agreementwith Stritlingite, vertumnite the original (1852) results, although the latter was incor- E. Passaglia(1990) Strdtlingite: rectly calculated as C,rH'.. Transparent, "tcy" appear- R. Rinaldi, M. Sacerdoti, Crystal structure, chemistry, and a reexamination of its massive,crystalline, D*"." : 1.01(1),D".,": 1,02 ance, polytype vertumnite. Eur. J. Mineral', 2,841-849. g,/cm3,fuses at33-34 .C, soluble in CHClr, CH2CI2,CCl4, and CuHr(CHr).The infrared spectrumshows features typ- A new electron microprobe analysis of holotype striit- JAMBOR: NEW MINERAL NAMES 675 lingite from Bellerberg,Germany, gave SiO, 17.55,AlrO3 Testibiopalladite 23.22,CaO25.13, 1.09,BaO SrO 0.90,Na,O 0.13,K.,O Won-Sa Kim, G.Y. Chao (1991) Phaserelations in the 0.18, HrO (by ditrerence)31.80, sum 100 wt0/0,corre- systemPd-Sb-Te. Can. Mineral.,29, 401-409. sponding to the structurally derived formula (Ca, roSrooo- Synthesisin the system Pd-Sb-Te indicated that testi- Bao orNao orKo o,)", 00Al(Alo nrSi, ,o)", r?O2 ,3(OH),o oo. 2.25H2O,ideally Ca,Al(Al,Si)Or(OH),0. 2.25HrO, in good biopalladite, ideally PdSbTe, is a member of the PdSb,- agreementwith data for striitlingite from Mantalto di Cas- PdTe(SbouoTeor.)solid solution rather than an ordered tro, Italy. Single-crystalX-ray structural study (isotropic I : I : I compound. The formula thus becomesPdTe(Sb,Te), R : 0.080) of the latter gave rhombohedral symmetry, probably with minor Bi in the (Sb,Te)position. J.L.J. spacegroup R3m, a: 5.753(6),c : 37.82(5)A as refined from a 114.6-mm Gandolfi powder pattern (Cu radiation) with strongestlines 12.69(vs,003),6.28(m,broad, 006), 4.200(vs,broad,009),2.87 4(s,ll0), 2.488(m,021), 2.366(m,205),and 1.848(s,broad,2l4). Vesignieite Electron microprobe analysis of holotype vertumnite gaveSiO, 18.I , Alroj 25.26, CaO 25.88,SrO 0.8I , BaO ZheshengMa, Ruilin He, Xiaoling Zhu (1990) Redeter- 0.18,NarO 0.07,K,O 0.02,HrO* 23.74 andHrO- 5.96 mination of the crystal structure of vesignieite. Acta (in English (TGA), sum 99.93 wt0/0,corresponding to the structurally Gelogica Sinica, 64(4), 302-308 Chinese, abstract). derived formula (Ca, ,, Sroo, Bao o, Nao o, )", 00Al(Alr,oe- Si, rr)", j603,6(OH)eM.2.45I{2O, ideally CarAl(Al, Single-crystalX-ray structural study (R : 0.051) of ve- si,,5)o3(oH) 2.45H2O. signieite,CurBa(VOo)r(OH)r, gave monoclinic symmetry, ". The c parameter of vertumnite is about two-thirds that spacegroup C2 / m, a : 10.270(2), b : 5.9| I ( I ), c : 7.7 | | (2) ofstriitlingite, and striitlingite has a larger proportion of L, 0 : 116.42(3), z : 2. Strongestlines of the X-ray vacant tetrahedral sitesand a higher degreeof hydration. powder pattern are 3.220(100,112),2.953(40,311), The minerals can be classifiedas mixed module polytypes 2.7| 35 (80,3 | 2), 2.5 63 5 (60,1 | 2), 2.2960(60,222), with constant module proportions (type II polytypes). 1.6136(40,224),and 1.4790(40,040).The cell dimensions J.L.J. and spacegroup are new. J.L.J.