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1R13;, Zrxiang.Yu (1997) Changchengite-A New Iridium Bis- Srrr,O, 0.T+ (0.02-0.35), Sio, 0.57 (0.33-0.88), P,O, {Ruthidj-Sulphl{9 !Rom the Yanshanmountains

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1R13;, Zrxiang.Yu (1997) Changchengite-A New Iridium Bis- Srrr,O, 0.T+ (0.02-0.35), Sio, 0.57 (0.33-0.88), P,O, {Ruthidj-Sulphl{9 !Rom the Yanshanmountains AmericanMineralogist, Volume 83,pages 907 910, 1998 NEW MINERAL NAMES* JonN L. JaMsonr' NIxor-.+l N. Pnnrsnvr2 and ANonnw C. RorBnrs' rDepartmentof EarthSciences, University of Waterloo,Waterloo, Ontario N2L 3Gl, Canada ,IGREMRAN, Russian Academy of Sciences,Moscow 10917, Staromonetnii 35, Russta rGeologicalSurvey of Canada,601 Booth Street, Ottawa KIA 0E8,Canada Berezanskite{< Seven electron microprobe analyses gave an average L.A. Pautov, A.A. Agakhonov (1991) Berezanskite, and range of S 7.2 (6.9-8.1), Ni 0.0 (0.0-0.1), Cu 0.3 KLi.Ti,Si,,O,o,a new rnineral.Zapiski Vseross. Mineral. (0.2-0.4). Te 0.4 (0.3-0.7), y 41.2 (40.4-42.2), Pt 2.5 Obshch.,126(4),75-80 (in Russian,English abs.). (1.8-3.5). Bi 47.3 (46.4-48.2), sum 99.1 (97.2-99.8) Sevenelectron microprobe analyses gave a mean and wtEo, correspondingto (Iron,uPtoou.Cuoor,)r,oro(Binrr range of SiO. 73.64 (72.93-14.02), Al.O. 0.09 (0.06- ftoo,*)r,*,Sonr,,ideally IrBiS. The mineral occursas ag- 0.15),TiO, 15.86(15.59-16.44), Nb,O,0.56 (0.53-0.74), gregatesto 0.2 mm, and as veinletsto 0.2 mm width and FeO 0.16 (O.01-O.25),BaO 0.11 (0.00-0.27), K"O 4.7O 1.0 mm length. Opaque,metallic luster,steel gray color, (4.64-4.78), Na,O 0.18 (0.13-0.26), Li,O (AAS) 4.50 black streak,VHN,.: 165 (140-185), no cleavage,brit- (4.50-4.50), sum 99.79 (99.34-100.32) wt%o. core- tle, nonmagnetic,insoluble in HNO,, HCl, and H3PO*, spondingto (Kor.NaoouBqo,)r,0.(LirnrAloor):rnr(Ti,n*Mn*D*n : 11.56 glcm. for Z = 4. Bright white with a yel- Feoor)rrooSi,'nnO.o.Occurs as aggregates,up to 2 x 3-mm, lowish tint inleflected light, lsotropic.Reflectance per- and as vein-like aggregatesto 3 x 20 mm, consisting of centages(WTiC standard,air) are given in 10 nm sieps platy grains up to 0.6 mm across.White color,.uit ."olt- from Z00 to 700 nm; representativevalues are 46.2(4'70), to pearly luster, perfect basal cleavage {0001 }, b^"!r]:. 47 .2 (550), 4i .6 (590), and4i .4 (650). By analogy to X- :21/z-3,VHN,':68'5'D-.".:2'66(2),o^.=,?.uJ!_f'. { ray data for the syntheticanalog and mayingitle,cubic cm3 for z : 2' Insoluble in water or 1:l HCI; .b,lqlt rv'*-.r.v, rpu." g.oup P2,3,a: ese+Gi A. strongest bluish white fluorescencein short-wave ultraviolet ligh! i** ;i r'h" beuye-scrrener X-ray pattern (57 mm, FeKcr bright bluish luminescenceunder an electronbeam. The _:,-,-.,^-_l--^ IRipectrumhas absorption bands at 46s,s40,ffi: ?e0. 'r1o,ij'it'n#o"o:,i3r:Xn\'h?;;,f&r"')'r'860(100' ""i1,9 1tt.3i1*t"fl"lT*;flfi:ri${fl fr"ff:."ffj|"ffi: J;"1o""oi.as repracements orarong.the edges launte' and as anneoralto suDneoral tically uniaxialnegative, rarely with anomalous.rieak bi- Srarns within:1,]li1t:11",,1"d iridisite' These occur in Pt placerdeposits' and in axial charactef,e :1.630(2), o : 1.635(1).H".;; chromite orebodies in dunite' along a symmerry, po"ssiblespace p6/mcc,, : g.;i;liil;; sroup :TI^"nT,t.1'"t Hebei Province' about 200 : t4.z'14(2)A as derermin-edfrom X-ray powde;;;[,|; the Luanhe River in Pt-:|,:f name alludes to a (diffractometer and 57 mm camera,f'ef. raOiatiJ.tl wiitr km ENE of Beijing, China' The new strongest diffiactometry lines (36 lines gi""rl J feature at the locality, Changcheng,which is Chinesefor t.t5(40,002), 4.2g(50,0'io),4.oi(85,ltz),:.s1eo,ggal the Great wall. Type materialis in the National Geolog- 3.16(100,121),and 2.8g5,(g5,Il4); inrensiriesof somi ical Museum of China, in Beijing. J.L.J. lines are enhancedbecause of selective orientation. The mineral has some of the properties of the milarite group, and may by the Ti analog of brannockite,but there Fluorcaphite* are also similarities to the tuhualite group. The mineral is A.p Khomyakov, I.M. Kulikova, R.K. Rastsvetaeva associatedwith pyrophanite, aegirine, microcline, tien- (1997) Fluorcaphite Ca(Sr,Na,CaXCa,Sr,Ce),(pOu).f;a shanite, and a Ba-Ti silicate that occur in a fragment of new mineral with the apatite structural motif. Zapiski alkali pegmatite in moraine at the Dara-i-Pioz glacier in Vseross.Mineral. Obshch., 126(3),87-97 (in Russian, the Pamir Mountains, Garm region, Tadzhikistan. The English abs.). new name is for geologist A.V. Berezanskii (b. 1948). Type material is in the Mineralogical Museum of the Il- Electron microprobe analyses of seven grains gave a men Reserve.Miass. Russia.N.N.P. mean and range of Na,O 1.74 (1.46-1.85)' CaO 30.46 (28.34-33.29), SrO 20.78 (19.92-23.08), BaO 0.03 changchengite* !"'13,?13:k1;r:f:5.33;T3a.'i* t"i,-1r13;, Zrxiang.Yu (1997) Changchengite-a new iridium bis- Srrr,O, 0.t+ (0.02-0.35), SiO, 0.57 (0.33-0.88), p,O, {ruthidj-sulphl{9_!rom the YanshanMountains. Acta K.ZZ'.ZS.+A_36.93), F Z.tj (t.gt_2.54), H,O (calc.) Geol' Sinica' 7l(4)' 486-490' 0.52, o = F 0.91, sum 100.94 wt7o, correspondingto (Cau..,Sr-.Na.o.)rnrr(Ceo,*L%,nNdo'nPrnnrSmnn')tnou(Prn. x Betbrepublication, minerals marked with an asteriskwere approvedby the Commissionon New MineralsunJ'liin"iut Sio,,)>uoooroFr-(OH)our,simplified as Ca.rSrrrCeo.Noo. Nu-"., InternationalMineralogical Association. (PO*).F or (Ca,Sr,Ce,Na),(PO.),F Occurs as subhedral 0003-004x/98/0708-0907s05.00 907 JAMBOR ET AL.: NEW MINERAL NAMES prisms up to 5 mm long, and in aggregatesup to 15 mm 2.253(80,312,311).Also seeAm. Mineral., 75, p. 436, across.Light to bright yellow color, vitreous luster,brittle. 1990. = H 5, readily soluble in l}Vo HCI or HNO3, D-.", : The mineral, which is the F analog of thal6nite-(y), is : 3.60, D.n 3.57 g/cm3for Z : 2. The infrared spectrum associatedwith fluorite, microcline, albite, quartz, keivi- has a seriesof distinct absorptionbands at 400, 573,60I, ite-(Y), kuliokite-(Y), xenorime-(Y), hingganite-(Y), and 953, 1000 (shoulder),1039, 1090 (shoulder),and two basmasite-(Ce)in "amazonite" (microcline) pegmatites ,, weak bands at 3360 and 3490 cm generally corre- at Ploskaya Mountain, western Keiv, Kola Peninsula, sponding to spectrafor the apatite family. Optically uni- Russia. Type material is in the Fersman Mineralogical axial negative,e = 1.637,a = 1.649.Single-crystal X- Museum,Moscow, Russia.N.N.P. ray structure study indicated hexagonal^symmetry, space group P6., a : 9.485(3).c : 7.00013)A. Strongestlines of the X-ray powder pattern (diffractometer, CuKc radi- Iuonniite* ation, 57 lines given) are3.498(45,002), 2.838(10O,2t1), R.P Liferovich, V.N. Yakovenchuk,Ya.A. Pakhomovskii, 2.814(48,112),2.740(53,130), and 1.865(31,213).See A.N. Bogdanova,S.N. Britvin (1997)Juonniite, alsoAm. Mineral., 82, p. 821, 1997. a new scandiummineral from calcite-dolomitecarbonatites of The mineral occurs in miarolitic cavities in the central the Kovdor massif. Zapiskj Vseross.Mineral. Obshch., part of a hyperagpaitic pegmatite in ijolite-urtite at the 126(4),80-88 (in Russian,English abs.). Khibina alkaline massif, Kola Peninsula, Russia. Asso- ciated minerals are alkali amphibole, lamprophyllite, la- Nine electron microprobe analysesof grains from four buntsovite(?), wadeite, sazykinaite-(y), sphalerite, gale- paragenetictypes gave MgO 11.56-12.98, CaO 10.33- 14, fluorite, graphite, and deloneite-(Ce) and 13.54,Sc,O, 11.85-14.43,TiO, 0.00-1.55,MnO 0.47- belovite-(Ce), the last two of which are members of the 2.54, FeO 0.29-2.11, SrO 0.00-1.59,BaO 0.33-2.33. apatite family, and which form intergrowths with fluor- P,O,35.49-36.95,H,O (Penfieldmethod) 20,H,O by dif- caphite, thus indicating solid-solution limits among Na- ference19.78-22.70, sum 100 wt%o,with the averageof Ca-Sr-REE in the apatite family. The new name alludes the nine formulas correspondingto (CaoruBaoorMnoo, to the chemical composition of the mineral (f; Ca, and Sroor)rornMg, oo(Sco^ Mgn ,, Feoo,Tinor)r, * (PO"),(OH)'r. P). The mineral is a Ca- and F-dominant structuralanalog .4.25H,O, ideally CaMgSc(PO*),(OH).4H,O.Occurs as of strontium-apatite.Type material is in the FersmanMin- spherulites, to 0.8 mm across, consisting of subparallel, eralogical Museum, Moscow, Russia.N.N.p. commonly curved, plates up to 12 p"m across and 2 pm thick. Gray to bright orange color, vitreous luster, trans- lucent, white streak, no cleavage,H : 4-4V2, VHN2, : Fluorthal6nite-(y)* 330, nonfluorescent,slowly soluble in l}Vo HCl, D_""" : 2.43(3),D-*: 239-247 g/cm3for Z: 8. The infrared A.V. Voloshin, Ya.A. Pakhomovskii (I99T Fluorthal6- spectrumhas absorption nite-(Y ), a new mineral from amazoniterandpegmatites bandsat 435, 447, 546, 582, 641, of the Kola Peninsula.Doklady Akad. 878, 1022, 1050, 1120, 1435, 1663, 3025, 3130, 3410, Nauk,-354(l), r, 77-78 (in Russian,English abs.). and 3500 cm corresponding to (H,O)o, (OH)-, and (POo)3 groups.Optically biaxial negative,u : 1.574(l), Two electron microprobe analyses gave yrO, 54.59, B : 1.579(1),1 : 1.582(2),2V**: 70".Indexing of the 54.06,Yb,O.
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