American Mineralogist, Volume 77, pages446-452' 1992

NEW NAMES*

JonN L. Jlvrson CANMET, 555 Booth Street,Ottawa, Ontario KIA OGl, Dlvro A. Ya,uro Department of Geology, Georgia State University, Atlanta, Georgia 30303, U.S.A.

Native brass mitted light, white , adamantine luster, no fluores- cence,brittle, microhardness(10-g load) : 673 kg/cm2, M.G. Chebotarev,G.M. Chebotarev(1990) Native brass perfect .Optically biaxial negative, 2V : 20, u in gold sulfide ore deposits in Central Kyzylkum. Uz- : 1.997(5),positive elongation, bek. Geol.Zh.,1990(3),39-41 (in Russian). 1.936(5),t: r > v, no pleochroism,X : a, Y: b, Z: c. Analysis of the mineral by electron microprobe gave The name is for I. M. Cheremnykh, one of the discov- (averageof four,range) Cu 61.30,54.98-67.87;2n38.93, erers of the Kuranakh deposit. Type material is at the 34.7243.59 Fe 1.97, 0-4.06; sum 102.20wt0/0, corre- Institute of Geological SciencesMuseum, Yakutsk Sci- spondingto Cu, Both a-type and u-B-type ence Center, Siberian Branch, USSR Academy of Sci- ",FeoorZrt,,r. forms of brass are present. Greenish yellow in reflected ences. light. The mineral occurs as microscopic inclusions in pyrite from late-stagequartz-pyrite veins that cut Au- Kuksite bearing pyrite depositsin westernUzbekistan. Pyrrhotite Analysis by electron microprobe (averageof nine) gave and graphite-like carbonaceousmaterial are associated PbO 50.59, ZnO 20.76, CaO 1.46,TeO. 14.30,P,O' with the brass. A final note claims that contamination 10.38,VrO5 1.81, AsrO,0.07, SiOr 0.40, sum 99.77vtto/o, during production of polished thin sections cannot be correspondingto Pb, urZn,orCa" r, Teo nuPr r3vo 23sio o8O r3 eo, ruled out as the sourceof the "native brass." D.A.V. ideally Pb,ZnrTeOu(POo)r.X-ray study (singlecrystal and powder diffraction) showedthe mineral to be orthorhom- bic, spacegroup Cmmm, C222, Cm2m, or Cmm2, a: Cheremnykhite*, kuksite* 8.50(3),b: r4.72(s),c: 5.19(3)A, Z:2. D*^:6.2r A.A. Kim, N.V. Zayakina,V.F. Makhotko (1990)Kuks- g/cm3. The strongest lines (17 given) are ite Pb.Zn.TeOu(POo),and cheremnykhite PbrZnr- 3.29(I 00,1 3 1,20 I ), 3.00(80,221,04 r), 2.594(40,002), TeOu(VOo)r-New tellurates from the Kuranakh gold 1.903(50,242,152,3 | 2), and 1.606(30,352,422,17 7). Oc- Zapiski Vses. deposit (Central Aldan, southern Yakutia). curs as thin tabular crystals,0.I to 0.3 mm, with {100} I l9(5), 50-57 (in Russian). Mineral. Obshch., well developed,associated with cheremnykhite, duggan- yafsoanite,descloizite, and Te-Pb-Mn-saponite, as a Cheremnykhite ite, late-stageinterstitial mineral in calcite of the Kuranakh microprobe (averageof ten) gave Analysis by electron gold deposit, Central Aldan. In hand specimenthe min- 18.89,TeO. 13.76,V2Os9.25, PrO5 0.06, PbO 53.04,ZnO eral is gray and turbid, and transparent in transmitted 2.16, sum 99.24 wt0/0,cor- As,O, 2.02, Sb,O50.06, SiO, light. White streak,adamantine luster, weak fluorescence, Pb, respondingto o.ZnrrrTe, ooVr roAso rrPo orSioouO,r rr, brittle, microhardness(10-g load) : 325 kg/cm2, perfect ideally PbrZnrTeOu(VOo)r.X-ray study (single crystal cleavage.Optically biaxial negative,2V : 12-20', a: powder diffraction) showed the mineral to be or- and 1.971(5),y : 1.981(5),positive elongation,dispersion r group Cmmm, C222, Cm2m, ot thorhombic, space > v, Z: c, no pleochroism. 14.86(5),c: 5.18(3)A, Z:2, Cmm2,c: 8.58(3),b: The name is for A. L Kuks, one of the discoverersof : g1cm3.The strongest lines (20 given) are D*rc 6.44 the Kuranakh deposit. Type material is at the Institute of 2.470(40,060,330), 3.30(100,I 3 1,201),3.00(90,221,041), Geological SciencesMuseum, Yakutsk Science Center, 2,3| 2), and I .6 0 7 (6 0,3 52,422,1 7 7 The | .903(50,242,1 5 ). Siberian Branch, USSR Academy of Sciences.D.A.V. mineral occursas elongatetabular crystals,0.1 to 0.5 mm, with well-developed{100} and {010}. Occurswith kuks- ite, dugganite, yafsoanite, descloizite, and Te-Pb-Mn- Dmisteinbergite* saponite as a late-stageinterstitial mineral in calcite at E.V. Lotova, E'N. Nigmatulina, V.S. the Kuranakh gold deposit, Central Aldan. In hand spec- B.V. Chesnokov, Pavlyuchenko, A.F. Bushmakin (1990) Dmisteinberg- imen the mineral is greenishyellow, transparentin trans- ite CaAlrSirO, (hexagonal)-A new mineral' Zapiski -n Vses.Mineral. Obshch.,I l9(5), 43-45 (in Russian). B"fo.. publication, marked with an asteriskwere ap- mineral by electron microprobe (aver- provedby the Commissionon New Mineralsand MineralNames, Analysis of the InternationalMineralogical Association. ageof four) gaveNa,O 0.32, &O 0'03, MgO 0.01, CaO 0003-004x/92l0304-0446$02.00 446 JAMBOR AND VANKO: NEW MINERAL NAMES 447

19.29, AI2O335.39, SiO, 43.89, sum 98.93 wto/0,corre- Two new arsenoselenidesfrom the north shore ofLake sponding to (CaonuNa" or)ro rrAl, essi2oro8 00, ideally Ca- Athabasca,Saskatchewan. Can. Mineral., 29. 4 | I -4 I 8. Alrsiror. The mineral decomposesslowly in HCl. X-ray study showed the mineral to be hexagonal, Jolliffeite P6/mmm,a: 5.122(5),c: 14.78t(l A, Z:2, D.orc: Electron-microprobe analysis (one of seven analyzed 2.747 g/cm3. The strongestlines (seven given) are grains)gave Ni 23.2,Co 5.I, Fe 0.06,Cu 0.09,As 36.6, 4.48(60,100),3.83(60,102), 3.73(100,004), 2.85(70,104), Se 36.6, S 0.08, sum l0l.l3 wt0/0,corresponding to 2.57(80,110),and 1.847(70,008).The mineral forms hex- (Nior.Coo,r)r,o,As, o, (SeonrSoo,)ronr, ideally NiAsSe. Oc- agonal tablets up to 0.7 mm across on surfaces curs as anhedral grains up to 145 x 240 p.m, typically in blocks from burned coal dumps in the Chelyabinsk rimmed by clausthalite.In reflectedlight, white, not bire- coal basin, southern Ural mountains. It is associatedwith flectant or pleochroic; representative reflectance mea- cordierite, mullite, anorthite, wollastonite, tridymite, fa- surements(percent), given in 20-nm stepsfor air and for yalite, fassaite,norbergite-chondrodite, graphite, and iron oil, are(nm, R,, R, in air) 420 50.3,50.6;46050.7, 50.8; carbidesand monosulfides.Crystals exhibit a well-devel- 50050.9, 51.0; 540 51.5, 51.5; 580 51.2, 5r.3;620 51.4, oped {001} pinacoid and a poorly developed {1010} 51.4;66051.4, 51.3. X-ray single-crysralsrudy indicated prism. Colorless,perfect {0001} cleavage,H : 6. Opti- cubic symmetry,space group Pa3, a : 5.831(l) A, D..,. callyuniaxial positive, a: 1.575,e : 1.580. : 7.12 g,/cm3with the ideal formula, and Z : 4. The The name is for Dmitrii Steinberg,a noted petrologist. X-ray powder pattern (nine lines given) has strongestlines Type material is at the Fersman Mineralogical Museum, of 2.916(50,200),2.602(100,210), 2.378(80,211), Moscow.D.A.V. 1.757(80,3I l), and 1.559(50,32l). The new mineral, which is chemically and crystallo- graphically the Se analogue of gersdorffite-Pa3,is asso- Haynesite* ciated with pitchblende in drill core of a fracture zone M._Deliens,P. Piret (1991)Haynesite, uranyl selenitehy- near a dolomite-peridotite contact at Fish Hook Bay, drate, a new mineral speciesfrom the Repetemine, San Shirley Peninsula,on the north shore of Lake Athabaska Juan County, Utah. Can. Mineral., 29, 561-564 6n near lJranium City, Saskatchewan.The new name is for French,English abstract). A. W. Jolliffee(1907-1988), Queen's University, Kings- ton. Type material is in the SystematicReference Electron-microprobe and CHN analyses gave, after Series of the National Mineral collection, subtractionof l.5l wto/ocalcite (0.850/o CaO), UO. 7l.gl, Geological Survey of Canada, Ottawa. SeO, 17.91,HrO 8.56, sum 98.28wt0/0, corresponding to 3.03UO,' I .95SeO,. 5.7 5H,O, ideally(IJO,)3(OH),(SeO,),. 5HrO. Occurs as amber-yellow tablets, transparent to CoAsSe translucent, elongate[001], and as acicular prismatic ro- Occurs with jolliffeite as grains of similar size, habit, settesto 3 mm in diameter; vitreous luster,.F/ : 1.5-2, and association. Electron-microprobe analyses of two easy {010} cleavage,yellowish green fluorescence,D_."" grainsgave Co 23.6,17.8; Ni 5.1,10.3; Fe 0.27,0.l8; As : 4.1, D.,.: 4.07 g/cm3with Z : 2. Optically biaxial 37.7,33.2;Se 32.8,39.1;S 1.1,0.9; sum 100.57,100.67 negativea:1.618(2), B: 1.738(3),1: 1.765(5),2V^."wt0/0,corresponding to (Coor. Nio,, Feoo, )r, o,As, o,(Seo ru- : 45o,2V"u,": 48', X : a, Y : b, Z : c. Pleochroicfrom Soor)"0n, and (CoouoNio' Feoo,)r,orAson, (Se,oo Soo,)r,or, pale yellow to bright yellow. X-ray single-crystal study ideally CoAsSe. In reflected light, white, slightly aniso- indicated orthorhombic symmetry, spacegroup pnc2 or tropic (gray rotation tints). Reflectancemeasurements, as Pncm,a: 8.025(5),b: 17.43(t),c : 6.935(3)A. Strong- for jolliffeite,are 420 49.45,51.0; 460 50.2,51.2;500 est lines (32 given) of the powder pattern are 50.8,51.6; 540 51.2,51.8; 580 51.4,51.9;620 51.5, 51.9; 8.01(100,100),4.01(70,200), 3.468(60,002), 3.186 660 51.5, 51.9. An X-ray single crystal-type mount (50,102),3.1 l9(70,051), 2.912(80,151), and 2.471 showed that the mineral is cryptocrystalline. Strongest (40,251). lines of the powder pattern (13 lines listed) are 2.592(100), The mineral is associatedwith andersonite,boltwood- 2.365(80),1.746(60),and 1.547(49 A. fne pauernis not ite, gypsum, and calcite as crustson mudstonesand sand- similar to that of cobaltite or synthesizedCoAsSe. J.L.J. stones of the Morrison Formation at the Repete mine near Blanding, Utah. The new name honors patrick Haynes, the United States geologist who first collected Lunijianlaite* the mineral. Type material is in the Institut royal des Youhua Kong, Xiuwen Peng, Dehui Tian (1990) Luni- Sciencesnaturelles de Belgiqueat Brussels,Belgium. J.LJ. jianlaite-A new regular interstratified mineral. Acta Mineral. Sinica, l0(4), 289-298 (in Chinese, English abstract). Jolliffeite*, unnamedCoAsSe Electron-microprobe, TG (for HrO), and atomic-ab- L.J. Cabri, J.H.G. l,aflamme,A.C. Roberts,A.J. Criddle, sorption spectrographicanalyses (for Li) gaveNarO 0.063, L.J. Hulbert (1991) Jollitreite and unnamed CoAsSe: IlO 0.012, Li2O 1.57, FerO, 0.60, AlrO3 44.80, SiO, 448 JAMBOR AND VANKO: NEW MINERAL NAMES

gave 41.61,HrOt 11.296,sum 99.951wto/o; the mineralcon- 124.91(3)'.Chemical analysis [seeDlscassion] SiO, 26'91, sists ofregular l:l interstratifications ofcookeite and py- 30.09,TiO, 6.02, N2O33.55, Fe'O, ll-12, FeO l'35, rophyllite, and the bulk analysis contains additional dis- BeO2.32, MnO 1.26,MgO 2.74,CaO 13.38,Na'O 100'28 crete cookeite. The calculated ideal formula corresponds KrO 0.30,HrO- 0.07,HrO* 0.35,LOI 0.22,sum (Lio,32Al4 Al,(SioOr0)(OH),the wt0/0, corresponding to (Car.orNao,rKo or)rr.ro- to r8eXSi3AlOr.XOH,O)s' - two parts representingcookeite and pyrophyllite layers, (Fe3.jrFe?jrTifl]uMn oo,Mgo ro)"r r, (Sio rnB eo il Al o.u') rr.r, is (Ca'.rrNao.rr)"r.oo- respectively,simplified as Lio r.rAlu (Si?AIOr0XOH,O)'0. Oro. The structural formula ", : 3.88, An electron-diffractionpattern (usedin combination with (Fe3iJe?1Ji3iMg3 jJ%0o(Sr. oBe, oAlo u)* oo ^- D* : indicates energy-dispersionanalyses to determine AVSi ratios) gave D.^r,: 3.92 g/cm3 with Z 2. Ttre structure group. a: 5.09, b : 8.97, and from the powder pattern c sin B that the mineral belongsto the aenigmatite name : 23.397 A. A httice fringe image gave d(001) : 23.4 Discussion. The description, analysis, and new A. ttre mineral shows only 00/ diffraction lines, but all were reported in the book New Little-studied Minerals orders are present, and of similar width, to /: 18, indi- and Mineral Associationsof the Ural by V. O. Polyakov' Ukr' cating excellentregular stratification. Individual lunijian- G. E. Cherepivskaya,and E. P. Shcherbakova,Izd' laite domains are about 200 A thick. Strongestlines of Nauchnyi Tsentr. Akad. Nauk SSR, which has not been the X-ray powder pattern (all patterns contain some accessible.The origin of the name is uncertain, and the cookeite-CO) are 14.267(22, 001 CO), 11.788(1 5,002), mineral has not been approved by the CNMMN. J'L'J' 7.802(22,003),4.704(100,005; 003 CO), 3.899(8,006), 3.539(45,004 CO), 3.343(47,007),2.919(40,008), and 2.832(22,005CO). The coefficientof variation is 0.313. ManganotYchitex Individual crystalsare acicular to 2 mm in length, gen- A.P. Khomyakov, A.Yu. Bakhchisaraitsev,A.V. Marty- erally 0.4-1.2 mm, and occur as radiating aggregates0.8- nova, T.M. Parashchenko(1990) Manganotychite 2.0 mm in diameter. Colorless to white, transparent, NauMnr(SOo)(CO3)o-A new mineral. Zapiski Vses. pearlyto vitreousluster (silky in aggregates),H:2,pet- Mineral. Obshch.,I l9(5), 46-49 (in Russian). fect {001} cleavage,D-".": 2.75 g/cm3.Optically color- Analysis of the mineral by wet chemistry, adjusted by less,transparent, undulatory extinction that is parallel in subtracting 3.8 wto/oof intermixed shortite, gave NarO most grains and inclined 2-6'in a few; biaxial negative, 32.2l,MnO 15.00,FeO 6.00,MgO 1.98,CO, 30.68,SO3 : : : : a 1.576(5),B 1.582(5),7 1.587(5),2V 60(5). 14.13, sum 100.00 wto/0,corresponding to Narnn- Zhejiang Province, The mineral occurs at Qingtian, Mn, rrFeo.orMgo.rrSr.orCn.orO,u.or,ideally Nau(Mn'Fe, China, in bluish spheresof corundum in a pyrophyllite Mg)r(SO.XCOT)0.Assignment of all CaO to intermixed deposit formed in rhyolite by hydrothermal fluids of vol- shortite is justified becauseelectron-microprobe analysis canic origin. occurs at some of the contactsbe- of a clear crystal revealed no CaO. The IR spectrum shows tween corundum and lunijianlaite. Other coexistingmin- characteristicabsorption peaks for sulfate(6 3 5 , I I 20 cm-r) '). erals are chlorite, illite, halloysite, svanbergite,zeolites, and carbonate(713, 880, 1450 cm The DTA curve and specularhematite. The name is accordingto the Chi- showsendothermic peaks at 380, 440, and 750'C, cor- neseand IMA nomenclature systemsfor regularly strat- respondingto two dissociation stepsfollowed by melting. ified minerals: in Chinese,the names of the two mineral The mineral effervescesin various weak acids and dis- members are separatedby jian, signifying their alterna- solves slightly in cold , with development of a brown tion. The IMA suggeststhat group rather than species coating. The X-ray diffraction pattern is nearly identical names be used; hence, luni fot the chlorite group, repre- to that of fenotychite. Thus, manganotychite is cubic, senting cookeite, andjian with pyrophyllite. spacegroup Fd3, a : I 3.995l(8) A, Z : 8. The strongest Discussion.The repository for type material is not giv- lines (37 given) are 4.22(76,311),2.695(100,333'5ll), en. For a discussionof the nomenclature of regularly in- 2.474(7 0,440), 2.366(27,531),1.9 59(28,5 5 1,71 1), and terstratifiedminerals, see Bailey, Am. Mineral, 67,394- 1.616(28,555,751).The mineral occursas irregular grains 398, 1982.J.L.J. up to I cm acrossand in massive aggregatesup to 5 cm acrossin the core of hyperalkalic pegmatitic veins, 0.3 m wide, at Alluaiv mountain, Lovozero massif, Kola pen- Makarochkinite insula. Associatedminerals (37 listed) include potassium O.V. Yakubovich, Yu.A. Malinovskii, O.V. Polyakov feldspar, cancrinite, aegirine,villiaumite, cryolite, kogar- (1990) of makarochkinite. Kristallo- koite, trona, shortite, and sidorenkite. The mineral is pale grafiya,35, 1388-1394(in Russian,English translation pink on fresh surfaces,with dull vitreous luster and con- in Soviet Phys.Crystallogr., 35, 818-822). choidalfracture. H : 4, D^*":2.70(5), D*,":2.79 g/cm3. Single-crystalX-ray structural study (R :0.0297) of a Weakly magnetic,optically isotropic, n: 1.544(2).The crystal from the type locality, a granite pegmatite in "mine name is for the relationship to tychite and ferrotychite. 400" of the Il'menskii National Forest, gave triclinic Type material is at the Fersman Mineralogical Museum, symmetry,space group PT, a: 10.352(5),b: 10.744(3), Moscow, and at the Kola Geological Museum, Apatity. c : 8.864(D A, * : 105.73(3),P : 96.16(3),^r : D.A.V. JAMBOR AND VANKO: NEW MINERAL NAMES 449

Maxwellite*, squawcreekite* Aloo,)", ooO, and (FedjuSbSirSn",eTi. 08Alo or)r0 ,rOr, ide- Fe3*$fs+Oo.Reflectance values (o/o,R", R") are 470 E.E. Foord, P.F. Hlava, J.J. Fitzpatrick, R.C. Erd, R.W. ally Hinton (1991) Maxwellite and squawcreekite,two new nm 16.9,17.6: 546 nm 13.9,16.6; 589 nm 12.5,15.5; minerals from the Black Range tin district, Catron 650 nm 15.l, 18.3.In transmittedlight, uniaxialpositive, County, New Mexico, U.S.A. Neues Jahrb. Mineral. weak dispersion r > v, Z : c, wea0y pleochroic from pale Mon., 363-384. yellow (O) to medium yellow-brolvn (E). Single-crystal X-ray study indicated tetragonal symmetry, spacegroup : : Maxwellite P4r/mnm (by analogyto cassiterite),a 4.6673(7),c 3.1006(3)A. Strongestlines of the diffractometer pattern The mineral occurs as medium to dark red aggregates (CuKa,) are 3.3039(100,110), 2.5844(49,101), to 3 mm and as blocky to short prismatic euhedral to 2.3342(t7,200), l.7316(36,211), 1.6500(12,220),and subhedralcrystals up to I mm long,showing {013}, {526}, l.3907(l0,30 l). {526}, {01I }; medium to palered-orange streak, vitreous The new name is for the locality, Squaw Creek, Catron luster,transparent, H: 5-5.5, good {110} cleavage,ir- County, New Mexico, at which squawcreekiteis associ- regular to conchoidal fracture, nonfluorescent, D-"." : ated with maxwellite. Squawcreekiteis usually mantled 3.90(2),D"",": 3.95 g/cm3with Z : 4. Slowly solublein by epitaxial Fe- and Sb-bearingcassiterite that gradesout- HCI and HNO, and readily soluble in hot H,SO,. Elec- ward to normal cassiterite.The new mineral also occurs tron-microprobe analyses(av. of 43; LirO by ion micro- with cassiteriteat the Esperansatin mine near Durango, probe) gave NarO 8.0, CaO 8.0, FerO. 14.0, MgO 3.5, Mexico. Type material is in the U.S. National Museum, AlrO35.0, TiO, 5.0,MnrOr 0.5,SnO, 0.6,ZnO 0. l, AsrO, Washington, DC. J.L.J. 5l.0,ZrO,0.3, Nb,Os0.2,LirO 0.l, F 6.0,O = F 2.5, sum 99.8 wt0/0,corresponding to (NaornCaorrlioor)-ro- (Fe3loAlorrMgo roTio ,oMno o,Sno orZto or)"o rr(As, o,- OoXFo ideally NaFe3*(AsOo)F.Optically biax- 72Oo28)", oo, Nalipoite* ial positive,a: 1.748(3),P: 1.772(3),7: 1.798(3)(W light), 22."". : 86o,2V.,.: 89o,strong dispersion r > v, G.Y. Chao,T.S. Ercit (1991)Nalipoite, dilithium X rt,c : +llo, Y : b, Z l, a : 35.5;pleochroismX: phosphate, a new mineral speciesfrom Mont Saint- X: medium yellow-orange,Z: dark orangishrcd, Z > Hilaire, Quebec.Can. Mineral.,29, 565-568. (1991)The of nalipoite.Can. X : Y. Single-crystalX-ray study indicated monoclinic T.S. Ercit crystalstructure Mineral.,29,569-573. symmetry, spacegroup ,4a or A2/ a (A2/ aby analogywith other membersof the tilasite group), a : 7.161(l), b : The averageof six electron-microprobe analysesgave 8.780(2),c : 6.687(l)A, p : 114.58(l)"as refinedfrom Na,O 24.54,AlrO3 0.06, P2Os51.76,Li'O 22.12 (calc. a Guinier-H;igg pattern (CuKa, radiation) with strongest from stoichiometry), sum 98.48 wto/0,corresponding to lines of 4.844(70,111),3.291(100,2t1), 3.039(75,002), Na,orl-irPonnOo.Occurs as anhedral to subhedral blocky 2.637(50,031),and 2.614(80,220).The new name is for grains to 2 mm and as irregular grains to 0.2 mm; white, Charles H. Maxwell (U.S. Geological Survey, retired) in pale blue, or pale yellow color, white streak,vitreous lus- recognition of his studies of New Mexico geology.Max- ter, transparentto translucent,H : 4, very brittle, uneven wellite occurs adjacent to hematite-cassiteriteveins in fracture, nonfluorescent;good cleavages{100}, {010}, rhyolite at Squaw Creek, Catron County, New Mexico, {00 I }, { I I 0}, and distinct cleavagepossibly { I 0 I } ; readily (type locality) and in cavities in rhyolite at Willow Springs solublein l:l HNO., lessreadily in l:l HCl, and slowly Draw, Sierra County, New Mexico. Compositions indi- in l:l HrSOo.D-"* : 2.58(l), Du,: 2.612 g/cm3with cate complete solid solution among durangite NaAl- the ideal formula and Z : 4. Optically biaxial negative, AsOoF, tilasite CaMgAsOoF,and maxwellite. Type ma- a: 1.533(l),B: 1.540(l),z: 1.541(l),2V^."":49(r), terial is in the U.S. National Museum, Washington, DC. 2V,ot": 41";X : a, Y : c, Z: b. Gladstone-Dalecom- patibility is superior. X-ray structural study (R : 0.025) Squawcreekite indicated orthorhombic symmetry, spacegroup Pmnb, a Occurs as single euhedral, yellow-brown crystalsup to : 6.884(2),b : 9.976(4),c : a.927(2)A; strongestlines 50 x 200 x 200 pm and as radiating clusters to 2 mm of the powder pattern (l14.6-mm Gandolfi camera,Cu across.Typically elongate,also equant to flattened pris- radiation) are 4.02(100,120), 3.507(100,021), matic,showing {100}, {100}, {l I l}, and {l0l}. Paleyel- 3.441(100,200),2.493(90,040), and 2.462(90,002),in good Iow-brown streak,adamantine luster, transparcnt,H: 6- agreementwith data for synthetic NaLirPOo. 6.5, possibleimperfect cleavage on {100}, conchoidalto The mineral, previously UK63, occursin sodalite-anal- subconchoidalfracture, nonfluorescenl,D"ut : 6.02-6.06 cime-microcline xenoliths at the Poudrette quarry in the g/cm3 with Z : 2. Electron-microprobe analysis of two nepheline syenite of Mount Saint-Hilaire near Montreal, crystals gave, respectively,AlrO. 0.3, 0.4; CaO 0.1, Quebec.The new name alludes to the composition: Na- 0.1; TiO, 8.8, 5.3; MnrO. 0.3, 0.0; FerO, 19.1,23.2; Li-P-O. Type material is in the Canadian Museum of NbrO50.4, 0.1; SnOr 34.6,22.7; SbrO, 38.4, 45.5; sum Nature, Ottawa, and at the Royal Ontario Museum, To- l0l .9, 97.4 wto/0,corresponding to (FefrjnSbfijnSno,rTio ,r- ronto, Canada.J.L.J. 450 JAMBOR AND VANKO: NEW MINERAL NAMES

Roshchinite* powder data and cell dimensions for synthetic calcium monohydrate (PDF 19-200). Forms white to yel- E.M. Spiridonov,I.V. Petrova,D.M. Dashevskaya,E.P. acetate Balashov, L.M. Klimova (1990) Roshchinite lowish, finely fibrous crusts (l-3 cm) on chips of marl. : Ag,nPb,oSb'Sru-Anew mineral.Doklady Akad. Nauk Optically transparent,parallel extinction, a' 1.480(l), SSSR,3 12(l), 191-200 (in Russian). 7' : 1.470(2).Soluble in H,O, slightly vinegary odor, D"",. : 1.687 g,/cm3.The infrared spectrum shows a strong, Analysis by electron microprobe (averageof 30) gave broad absorption band ar 3395 cm-r and additional prin- Ag ra.26(0.28),Cu 0.02(0.16),Pb 15.53(0.55),Zn cipalbands at 1565,1455,1420,1030, and 680 cm '. 0.09(0.04),Fe 0.03(0.01),trace Mn, Hg 0.32(0.14),Sb The acetateforms within burning coal dumps at depths 44.42(0.79),As 1.42(0.73),S 23.15(0.19),sum 100.04 of l5-25 cm beneaththe surfaceat 68-80 "C; associated wto/0,corresponding to (Ag,r roCu,r,)",n .,(Pbn nrZno rn- minerals are , sal ammoniac, , , Feo ideallyAg,nPb,o- orHgo,u)",o rr(Sbor roAsr rr)"ro rrSnr rr, millosevichite, and boussingaultite.The origin is attrib- Sb5,Seu.X-ray study showed the mineral to be ortho- uted to reaction of CaCO, with "wood vinegar" (7-l0o/o rhombic, probable spacegroup Pmna, a: 12.946(19),b acetic acid) distilled from timbers in the dump material. : 19.048(10),c : 16.932(12)A, Z : l. The strongest The acetatepreviously was reported to occur in burning lines (16 given) are 3.24(60,400),2.85(80,260,241), coal dumps in Pennsylvania(R. B. Finkelman and M. E. 2.70(60,33r), 1.866(50,38 1,47 r), and 1.765(100,342).The Mrose, Newsletter,Friends of Mineralogy, Pennsylvania mineral occursas short, prismatic, partly rounded crystals Chapter,8, 3, 3, 1980).J.L.J. measuring 0.5 to 4 mm, intergrown with calcite, tetra- hedrite, and native gold in the Kvartsitov Gorki gold deposit of northern Kazakhstan. Fluid-inclusion micro- NarCa(MnoCaXCOr)F thermometric data suggesthydrothermal conditions of formation near 200 oC and 50 MPa (0.5 kbar). Other N.A. Yamnova, D.Yu. Pushcharovskii,A.P. Khomya- associatedminerals are zinkenite, stibnite, chalcostibite, kov, S.V. Vyatkin (1991) Crystal structureof the new berthierite, jamesonite, tennantite, and andorite. The natural fluorocarbonate NarCa(Mn,Ca)CO.F. Kristal- lografiya, 36, 30-33 (in Russian; English translation in mineral exhibitsthe forms {100}, {210}, {ll0}, {230}, SovietPhys. Crystallogr., 36(l), l4-16, l99l). {0I 0}, { I I l}, {221},{252}, {201}, {03 I }, {04I }, and {00I }; striations occur on some prism faces.The mineral is sil- Electron-microprobe analysis (not given) corresponds ver-grayto lead-gray,with metallic luster,steel-gray streak, to Nauorr(Ca, ,rrMllo ,rrFeo ,roYo ourDyo ooYbo oorEro oor- and is very brittle. VHN,0-20: 95 (53-143, n: ll). D^."" Gdooo,)"3 833Cu ooO,, oruF, qro. Optically biaxial negative,a : 5.265(15),D,^,,: 5.263g,/cm3. In reflectedlight, silver- : r.473(2), P : r.564(2),y : r.570(2), 2V : 27(r), H : white with a weak blue tint. Bireflectanceis weak and 4, D^"u": 2.73(2),D"u,": 2.71glcm3with Z : 4. X-ray noted only on prismatic sections.Anisotropic, but nearly structural study (R : 0.037) indicated monoclinic sym- isotropic in cross section. Reflectancevalues in air (nm, metry, spacegroup Cc a : 8.012(4),b : 15.79(l), c : R**0l0,R*,.o/o) are 400 36.9, 40.3; 440 37.0,40.5; 480 7.019(8)A, B: 100.78(7)'.The mineraloccurs as inclu- 36.6,40.3; 520 36.3, 40.2; 560 3 5.7, 39.7 ; 600 35.0, 38.9; sionsin nahcolite and trona at the Lovozero alkaline mas- 64034.4,38.0; 680 33.6,37.0',70033.0, 36.3. sil USSR.J.L.J. The name is for Yu. V. Roshchin, a noted geologist from central Kazakhstan.Type material is at the Fersman Mineralogical Museum, Moscow, and at the Mining Mu- Ca-phosphoromolybdate seum, Leningrad. D.A.V. E.I. Kotov, G.M. Skenderov,M.T. Dmitrieva, A.I. Vish- nev, A.I. Gorshkov,V.S. Malov (1990)Naturalcalcium phosphoromolybdate. Doklady Akad. Nauk SSSR, Ca acetate 312(6),1437-1440 (in Russian). Y. Z,atek(1991) Natural occurrenceof orthorhombic cal- Analysis ofthe mineral by electronmicroprobe (average cium acetate monohydrate (Kladno, central Bohemia, of five) gave MoO, 85.03(1.5),PrO5 8.33(0.7),CaO Czechoslovakia).Casopis mineral. geol.,36, 77-82. 5.50(1.0),sum 98.86 wto/0,yielding cations in the ratio Two chemical analysesgave CaO 26.86, 28.16 HrO Ca,rP, rMoro. The proposed ideal formula is 6.10,8.30; insol. 1.52,2.33;CO, calc.from TGA 24.81; [CarOr(OH)r]"PMonO"(OH)3'eO)".The mineral dis- HrO calc. from TGA 10.44; the ideal formula solves readily in HrO, concentrated HCl, and dilute al- (CH,COO)rCa.H,Orequires CaO 31.82, HrO 10.23, kaline solutions; dissolves slowly in concentrated KOH CTH6CO32.96,CO,25.0, sum 100wto/0. The X-ray pow- and NaOH but does not dissolve in concentratedHNO,. der pattern (diffractometer, Co radiation) has strongest Prolonged exposureto air results in discoloration and al- lines of 9.76(100,1l0), 3.772(13,301),3.275(10,014), teration to earthy material. X-ray study showedthe min- 3.233(12,104),2.90 | (6,3| 3,204), and 2.423(14,03 5) A eral to be rhombohedral, spacegroup R3m, R3m, R3, (50 lines listod, of which three weak ones are not index- R3, or R32,a: l0.ll A, a: 109.5".An alternative able);the resultsgive an orthorhombiccell,a: 11.850(5), hexagonalunit cellhas a: b: 16.51,c: l0.l I A, Z: b: 17.850(7),c : 13.360(5),in good agreementwith the 3. The strongestlines (22 given) are 8.24(80,110), JAMBOR AND VANKO: NEW MINERAL NAMES 451

3.36(100,003),1.653(70,550), 1.482(90,553), and O,r(F,OH)r,but with somedifferences and with Mn pre- 1.439(70,093).The X-ray pattern is identical to that of dominant in M3. Occurs in the exocontact of the subal- ammonia phosphoromolybdate,(NHo).P(MorO,0)0. 3HrO. kaline granites of the Inyl'chek massif, Tyan'-Shan, Kir- The mineral forms powdery coatingsand drusy aggregates giziya,USSR. J.L.J. in cavities and fractures ofaltered fluorapatite veins in a semi-arid region of southeasternBulgaria, associatedwith kaolinite and iron oxyhydroxide pseudomorphsof pyrite. Monoclinic tobermorite Grains are wedgeshaped and pseudohexagonal,averaging C. Henmi, I. Kusachi (1989)Monoclinic tobermorite from 0.2 mm in diameter. The mineral is yellow-green,white Fuka, Bitchu-cho, Okayama Prefecture,Japan. Ganseki streak, vitreous luster, subconchoidalfracture, imperfect Kobutsu KoshogakuZasshi, 84,374-379 (Journal of cleavage,H:2-3, D-"",: 2.94(5),D*rc:3.26 g/cm3(the the JapaneseAssoc. Mineralogists, Petrologists,Econ. differenceis attributed to the porosity and fractured state Geologists;in Japanese,English abstract). of the mineral). In transmitted light, transparent to col- Electron-microprobe and wet-chemical analysesgave orlesswith weak yellow tint. Gray in reflectedlight, with sior 46.55,TiOr 0.0l, Alro3 0.36,B2o30.23, FerOr 0.0l, yellow internal reflections.Optically anisotropic, negative MnO 0.06,MgO 0.1l, CaO 39.04,NarO 0.02,KrO 0.10, : elongation, oblique extinction, uniaxial negative, <.r HrO 13.75,F 0.18, O = F 0.08, sum 100.34wto/0, r.77 0(9), e : 1.729(9). D.A.V. corresponding to (Ca, ,rMgoorKo or)", 33 (Sis eoAl. 05- Boor)ru oo(O,u 5oOH, 3eF0 or)"r 8oo. 5. I H2O, ideally CarSiuO,,' 4H,O. Platy {001} to acicular[010], the former up to 3 Ba-Mn titanosilicate mm across;colorless to white, transparent,vitreous luster, R.K. Rastsvetaeva,R.A. Tamazyan,E.V. Sokolova,D.I. perfect{001} and poor {100} cleavages,Hzs: 251.274 Belakovskii (1991) Crystal structures of two modifica- kg/mm'z(Mohs4.5), D-..": 2.51, Duk:2.70 g,/cm3.Re- tions of natural Ba, Mn-titanosilicate. Soviet Phys. fractiveindices a:1.575, B: 1.580,"y: 1.585.No Crystallogr.,36(2), I 86-l 89. changeobserved on heating to 150 oC; changesto 9.3 A A mineral ofcomposition BaMnrTiO[Si,O,](OH), from tobermorite at 300'C and to wollastonite at 800 "C. X-ray Inyl'chek ridge, Kirgiziya, USSR, was describedrecently single-crystal study indicated monoclinic symmetry, space grotp Cc or C2/c, polysynthetically twinned on (001), a as structurally similar to bafertisite lAm. Mineral., 76, : : p : ge (t). 1439-1440, 19911.X-ray structural study of the same l1.331(9),b:7.353(7), c 22.67(2)A, .Sg powderpattern specimenshowed that the originally describedmineral is Strongestlines ofthe are I 1.25(100,002), twinned and consistsof two monoclinic components,one 3.3 04(5 t,206,023), 3.068(45,221), 3.034(60,22t), 2.8 I I (41,00 8,400,402), and 2.7 9 4(60,223,1 | 7 The min- witha: 5.361,b:6.906, c:12.556 A, B: 119.8", ). spacegroup P2,/m, composition Ba{Mnl*(OH)}{TiO- eral occurs with apophyllite, calcite, and I I A and 14 A (OH)[Si,O?]],R : 0.068. The other has c : 10.723,b : "orthorhombic" tobermorite in veins about I cm wide that cut skarn at Fuka, Kawakami Township, Okayama 13.812,c : 12.563A, P : I 19.9',space group Cm, com- position as for the precedingphase, R : 0.083, isostruc- Prefecture,Japan. J.L.J. tural with bafertisite. J.L.J. KrTiSi50* Mn member of epidote group A.A. Kim, V.Yu. Pankov(1989) First find ofapotassium- titanium silicate (KrTiSi6Or5)in platinum minerals of E.V. Sokolova,T.N. Nadezhina,L.A. Pautov( I 99 I ) Crys- the Inagli pluton. Doklady Akad. Nauk SSSR,309(3), tal structureof a new natural silicate of manganesefrom 690-692 (in Russian, English translation available). the epidotegroup. Soviet Phys. Crystallogr.,36(2),172- t74. The mineral occurs as inclusions, not larger than 0.05 mm, in two osmiridium (now iridium) grainsfrom a plac- Electron-microprobeanalysis gave SiO, MgO 2.5, 33.0, er derived from the Inagli pluton, central Aladan, USSR. Al,O3 11.0,CaO 5.6, TiO, 1.75,FeO MnO 14.5, 3.0, Electron-microprobeanalyses gave SiO, 50.82,TiO, 21.36, LarOr8.7, CerO, 11.0,NdrO3 2.5, SmrO.0.25, DyrO, AlrO30.62, MgO 0.75,CaO 0.13, Na'O 0.69,K2O 24.43, 1.25,PrrO. 0.75,VrO3 l.l, CrrO, 1.7,F 1.3wto/o; on the sum 98.80wt0/0, and SiO, 49.84,TiOr2l.l9,K,O 27.11, basis of X-ray structural study (R* : 0.036), the analysis sum 99.14 wt0/0,calculated as KrTio ,oSi,,uO, or &TiSi3Or. leads to (Cao ul-aorEo ,)", oo(Ceo,Lao ,2Ndo ,rDyo ,o- The mineral has regular outlines, similar in cross section Pro orSmo orEo or)", o,(Mgo ooFeo,rCro r2Ti0 r2V0 oeAlo ,r)", oo- to those of diopside, and coexists with phlogopite and MnAl[SiOo][SirOi](OHXFo The mineral u.Oor,). occurs as pecrolite. J.L.J. brown, transparent,prismatic crystalsup to 0.3 mm long. Optically biaxial negative,2V : 83', pleochroic from dark brown to pale yellow. X-ray study indicated monoclinic symmetry,space group P2,/ m, a: 8.903(6),b : 5.748(3), K-Na-Zn-Mn silicate c : 10.107(7)A, B : I13.41(5)",Z : 2. The structureis T.N. Nadezhina,E.V. Sokolova,D.L Belakovskii(1990) similar to that of dollaseite-(Ce),CaCeMgrAlSir- The crystal structure of K(Ko rrNaoor)rZnrM[' ,- 452 JAMBOR AND VANKO: NEW MINERAL NAMES

pseu- [Sirro3.]-A new natural representativeof the milarite subcell one-sixth that of the monoclinic cell shows structuraltlpe. Doklady Akad. Nauk SSSR,3 13(4),865- dotrigonal symmetry, and most grains simulate trigonal 868 (in Russian). symmetry by triple twinning. It is speculatedthat, whereas is monoclinic, Fe-poor langbanitemay Analysis of the mineral (method not reported)gave ZnO Fe-rich langbanite previously reported for this mineral. I 5.24,MnO 10.43,CaO 0.35, SiO, 62.6 1, FeO 0. I 3,NarO have the trigonal cell 3.19, trlro 8.06, sum 100.01 wt0/0,corresponding to J.L.J. trlrooNa,,rCa.orZn ,nMn,rrFeoorSi,rroO.o, based on 30 O mineral atoms. Single-crystalX-ray studies showed the Perryite to be hexagonal,space group P6cc or P6/mcc (probably P6cc),a: 10.525(6),c: A.218(9)4,, z:2, D-,":2.92 A. Okada,K. Kobayashi,T. Ito, T. Sakurai(1991) Struc- g/cm3.The structure is of the milarite type. The mineral ture of synthetic perryite, (Ni,Fe)r(Si,P)r.Acta Crystal- 1358-1361. is colorlessand transparent; occurs in pegmatitic quartz logr.,C47, boulders from glacial moraine, southern Tadzhikistan, in Electron-microprobeanalysis of synthetic perryite, pre- fine-grainedaggregates 2 cm wide, associatedwith reed- pared by melting of the elements,gave Ni 82.5, Fe 2.4, mergnerite, microcline, and eudialyte. Si 12.2, P 3.7 vrto/o[sum 100.8], correspondingto Discussion. The analysis as reported does not corre- (NiorrFeoo.)r(Si.reP.2,)3,similar to that of perryite in the spond to the chemical formula given in the title. D.A.V. Norton County enstatite achondrite. X-ray structural study (R : 0.027) gave trigonal symmetry, spacegroup R3c, hexagonalaxes a:6.640(2), c:37.982(l A, D..'": New Data 7.63(l) g,/cm3with Z: 12.Twinned on {0001}. The for- mula and cell are new. J.L.J.

Acuminite E. Krogh Andersen, G. Ploug-Sorensen,E. Leonardsen Roggianite (1991)The structureof acuminite,a strontium alumi- G. Giuseppetti,F.Mazzi, C. Tadini, E. Galli (1991)The num fluoridemineral. Zeits. Kristallogr., 194, 221-227 . revised crystal structure of roggianite: Car[Be(OH)r- Alrsioo,3l<2.5HrO.Neues Mineral. Mon., 307- X-ray crystal-structural study (R : 0.069) of holotype Jahrb. 3t4. acuminite, SrAIF"(OH) .HrO, specifiedthe spacegroup as CZ/c. J.L.J. X-ray crystal-structuralstudy (R : 0.061) of roggianite gavetetragonal symmetry, space group 14/ mcm, a : I 8.33, c : 9.16 A, composition Car[Be(OH)rAlrSioO,3]' Langbanite <2.5H2O, Z : 8. The formula is new. J.L.J. G. Giuseppetti,F. Mazz| C. Tadini (1991) The crystal structure of monoclinic langbanite: (Mn,Ca,Fe,Mg)l*- (Mn,Fe)f+Sb5*[O,6(SiOo)r]. Neues Jahrb. Mineral. Mon., Terskite 193-21t. Z.V. Pudovkina,N.M. Chernitsova(1991) Crystal struc- terskite NaoZr[HoSiuO,r].Doklady Akad. Nauk X-ray structural study (R : 0.027) of langbanite from ture of SSSR,3 l6(3) 645-649 (in Russian). Langban,Sweden, indicated monoclinic symmetry, space , groupC2/m, a: ll.56l(5),b:20.05(l), c: 11.075(9) X-ray crystal-structural study of terskite gave a : : A, B : SO.O:(5)",calculated chemical formula (MnrurCa"r,- 14.195(8),b : 14.750(5),c 7.511(2)A, spacegroup FeoorMg oo)fioo(Mn,ooFe,.r.)3ioosb5*[O,6(Sioo)r], Z : 6. A Pnc2, Z: 4. The spacegroup is new. J.L.J.