Document zdGg96Jy2oGYVpmaYR3g1wNaR

THE AMERICAN MINERALOGIST, VOL. 53, MAY-JUNE, 1968 TRICGLOINUIVCETRANLECUARNMDINAISNSGOCDIAISTTERDICATM, PNHEIWBOYLOERSKF1ROM WMillailacmolLm. R S oss, m ith ,UB. aSt.teGlleeoMloegmicaolriSaulrIvnesyt,itWutea,shCinoglutomnb,uDs,. OCh.io2042342203 AND W illNiaewm BHr.uAnsswhitcok,n,NJeowhnJseornseayn0d89J0o3h.nson, Abstract New chemical, optical, and X-ray data are given for talc, tremolite, and a manganoan amphibole (tirodite) from the Gouverneur mining district, New York. All talc examined is fgoruonudp Ctol boer Ctrilc, lsintriuc,ctau=re5t.y2p5se, 16-=la9y.e1r37tr,iccl=in9ic.4(4I8Tc,).aC=9he0m4ic6a',l a/3n=al9y8si5s5g',iv7es=t9h0ec0o',msppoascie atinoanlyosfestaolfc 2f2rotmalctshefroAmrnwolodrldpwitidaes lMocgaali0t4iSeis3i9t60isioFob0.sie0r(vOeHd)tih9a0.t Otanlcthdeerbivaesdis forofmflumoreitnae mceonrtp, hwohseedreasesdtiamlcendtearriyv'erdocfkrosmcounlttarainmsaafpicprreoccikasblceonfltuaoinrisnele,sfsroflmuo0ri.n1e1. to 0.48 -weight per Two of the three tremolite specimens examined have prominent lamellae, oriented parallel to (10T), of a second amphibole having the following unit-cell parameters: mono clinic, o=9.50, 6=18.04, c=5.28 , /S=10225', space group P2, or P2\/m. Chemical and X-ray evidence indicates that this amphibole is tirodite having the approximate composi tliiotenaCt atoe.mMpneoratMurgess9bSeilso0w225(00H0,FC).2. The tirodite probably exsolved from the host tremo New unit-cell data are given from three tremolites. X-ray powder data are given for talc and tremolite. I ntroduction flfptpscTdmt(ihhoo1tahruthuiire9ueolTocnsids6npsstsedhes6yisudeercneasy)rdacphgttitslahpuhnaiisstsnesouehadeatscdmsfnorlsydyeoepwsiot.risrootmtihnth.fsufTsaetgteeediaphthtnnhpyalaaoeirctehlnresftacfyptccroaGtmtsyrhehonraheinioifcnudsesrmstuaotdceasvlphcanstshbeykfaanttturrerrinpssyposneodtdeeaommeaaioyrmfepucdsfeosiehsrttestthlhorerhiaCoteectmtowerefioiaenaNiGipmaB0clvtbwle.earo-eoeiedwpleMusnAwsrrptvedeeiealnYgrregotnsmoahr0anteotlpn(oht-penr1ineeuScokhot9eruogiuiin6twndrb0Gmhig6eao2mwhr)osp-cttleHatherhohinoadnseesifv2ontceiim0onitnthdrctliar-gillhoelcyteCbtencRomhademLsf0leiaa,oofso2ylniwurtliaXc.wrndeilaeuttilT-eelchlylmttralrhhtheaan,aocoeekynadtnNhsrn,andsatsdmaoleldascryawpwsanea-trohrtBdcitenwerracyYte,oreimioisoacmdotdriphotwoiceroiezotiuktanarnidnee-r.ll logi1cSaltuSduirevseyof. silicate minerals (10). Publication authorized by the Director, U. S. Geo 751 CAM-109 752 MALCOLM ROSS, W ILLIA M L. SM ITH AND W ILLIAM H. ASHTON T he Gouverneur M ining D istrict smhvahvNtigtSottaaGnrrhhefnnnoiiaroeeeilggreederTTddwMdlmlmnetwehrieairnohhdemsedpeelatoptevyueeeivYhoymcLltlrnoeairsoeaciewroloorfnftgGoorlemnyaeebotewr,ntmtslxgmh,kaoalhiosbvdea,lttra.bauSoedaerohalneyeadngsplvrneMinleuedrsyyopinrttehdyct,pnoi4aerhoisephmapvatwncsn0assoissirnlaiaoniem0.dlsitenhpoudrnmutmdrfigoyohsmtpTcecfrehoemffiosye,hrhoaahnat-ehameltlihcrropeeoghlb2ltteeeetisaswh.trpire,oiata.n5enoeceatmrrlafBsTar0banoaTed,mnersopl0nale,ohoxadsvcecmeaogdtmleircdaxitnmfnmutnmrtaaecrabethmitodneitlulscoitebaeawoccaacnisct,irtnttutc,irlsukni,aer-tweupecbutfaiEselalfasbmrolaomlleyfrriedtcobynfefooneanam-.wobdd4nlcrdnbtiqAtormd5hankihidSeaufinscbibegdsseaaroeqeaeheldiytgrttsdmryrurGhrtutiorssrtpoaapnaaeezasce,ooEablelnihgtrfu,hyscnsuhcynmdetnaGaoiszcicvertsasagstlfnidiriurlateolreciennteasebgynilarr.ekrtlfiiedntbnyhnowcnfseaavetoagea-er,(grcrshrarpit1ttnueeelhoeonim9arlStadrmtssfewnodate6ltthfir,haatels..ds2ooaoeeecSrxrtsts)uluemesrdieor,Leiitastcniatmtoaurucaspaegtttidnpmlghieescwt.euoyoidrsnheaocnammpoi.rniImnintosnsesbnastaidssuunPhloitaoniitlnetmacvoreshrfbyatleeetfheiedls,tatcctnypnohrddhtltaktooecCsrhtopeiiheemnofeehmotrehoixastrdeplpmGobhuyoaontasulsoenreitnrlalsrreicnriilinideeattoeattsiteyytdnetaoeaesisnndoexa,.,tf,;,, Occurrence viowetoonoffxibesTTcsrbtisaoehatthheerecvigeevdsrkfalleretayAisotidnxyctomruptipnn1toadooeso9tasyes6nlebwbdd1ofdwoererpaousrrteanohieumtrtsdecrw2bfkofta8eaoehofc0asgiblenettltathoetgafiotwrenwoihlnmoysoehiIe,tnnvaiwdAdcedtaOheiasrrefrrnlcr.e3lntowotcr0oTdamlata0dbitohvsoieloefpenotrebhrni,:metwseia,1setiilin9ndtdipe6ngTeti6haattat.o.ccrhllroMcteteofhhasCaeaetrshnerooheedytmlhaadoneeposfxAgfaafptinmlrhnsoonyoegopso,iurlllsw,endraodeeamafs.lanhlwprtTdadhlaFehfoestsieol,noemwdctssmoeoelitesniqnimctrewuse,iieiahsiwbwnnttieeeccaaddhdeass (((((52341))))) fm"a"olcaoiosmsteawsqyrisvauetleelalnyl"dcctoce"arlloycromosftcoaikrtalee,lni,"anbeiarorbteuaogtlucu3t"l0a1lref1en5iesnt,ftee(aerGbbto-e(1udG6td)-1i5n8gf)eeotf(Gco-1a7rs)ely crystalline TRICLINIC TALC FROM GOUVERNEUR 753 ftreee(mt6)o(Glih-ta1en9g,(vi2na0gr,iew2t1ya,llh2d2e)xolaogmonitiet.e) and massive talc ore, about 130 to 150 ffmpinwiTwcttttsnaioohhrravhailcayreeeulAntcesomehjhssrotltcheettwlyaraahrasoysanattblihtcnyitlnpcmletouiictegpoohsncdaanuvtiiialhasellncu.recraaasralgsdcarewbTteelafweoisnoemheswcl.fnocucgwrtieottietfaeiMtrhnahnalamtflc3trceoonoii.hesoa,nntarfd0eeelWTlpeotyl0ltsceaydeurhtem0orihicrxegnifdnltetefacapieheaeibslrlenofwdltlheywtrfxcssifotmeesiat,rpfehduutxrootmdooaiiekotseamrntfhslnennoglerutm.atiooctohunrtnt.ocowTeaihneneftnfksalThiirthncesst.rotoeehtohsroomaTaap-peaefeuflblsnlsahhctyptecsIdhryehgnt"haeltwhwleiiccrsetclsccoaeierciieealnaotmrfyerasstte]gmnlayslttfu,eiehrtaiskpnpnoanrn"pteteeocoflsluaieealooctam-ltidbxreooltkhngnttoeyodffierelairrndywtanlletthwAeieyihattadnneTsaaeelesriesclrlosrantctdmbepfMclreotrrceerroriifltaneodcnmaderocanCemehnydedorugoapmseoso,imnoeernl,iitmuditoodllmg1t,iinyitlepst9nhiticteef.ta6oonaecreeratn1folTcbrrd-scbt,yymeciefhsch,aeo,smooitoeoelnotioawcadnsaaogwstrirorltwhaaslsaleafaimttitemieletllahhnecrsllecawldidhyyoeeee;.l YorFk.igM. o1.diIfniedde,xinmpaaprto, ffrtohme GEnoguevle,rn19e6u2r, tPallcatme iIn.ing areas, St. Lawrence County, New 754 MALCOLM ROSS, W ILLIA M L. SM ITH AND W ILLIA M H. ASHTON olpTstarcoheifnlrhxecepyATdestaasohhtdAtarbaiamedtollrroleseeinnlioaddtviloinepyeaooaltepsldnfoseasaofottxaproealhfutemlxlieettlsncttohnhpaetvwdwem(lrneaGmsosdepmrc:fosi-ilkornlmtiefo)nues,nomoewsr.fearoaaemalfntstrhhdaoiwlenyaesresebtsllpohsWoleuucesuricisrsfitareag"ytcgchTi1sqooie2tvtaunnaeolmtaslfcniilern"iioteznnuizftenemeo-dtatturhtihr(nhesGetileametcyh-lmk2coie(an4Collwdosi)roStuebeehn-wrxte1gfacrare)omiae,crtncreheaeekGeepdfdxauoflsoarlpsu(tlmwoForyrvmieineikgnvssreutttnieauuhordenoddeurufoiisaaree1ult,rndydh)eg.d.eNahfsrT.awo3Yotmrhh/ame.4ees,. caSnanamrdt(((((be5a1234,l)o))))Glnt-aiGGGGGa2rmto4-----e211d.oll,4697iuiOt,,,s,tneanctp,tl2trslcare1eta-olhmo,anmcbfer-dolaimcatnblbravtioeiaotlrneyemsrbuno-iocrsqodcrmlnauleeoialaracatfcterllreiieat-ttntzersaraee-re.repammrmppptioreoeinedlanloimirtttrreieaoentsaleai(icr-nathotetdeaicdoxleiacnatmn-egmtteohoninontdiipotniehrlg)uy-ctalmaelgiritebFnenoIoCtnrilanqttehusaeaamrnctdpze,lmetisecronaGrdtib-in1toge6 T alc fmpCcWtaarrreholaeyrTecemtcstemghtesracieintitvlchrahsteaucelen.hlmcocetfAcaiTiumnocltrcrhramnieieTlrcuo.pemaamaloeTldbnosoflailspeotittlpithayrioe3etmulsn.ciasi.lus-tn--oprlostp(a1shTTge9eor(aha6afHbre1palto2ehhmc0aniioncs+2oadc)urFtaasancr1en)loet9lcafny6oluofya6nlifcssrrmoeiayiggsrpnssientcvtii(atlectnTuhilnaeoldealiannebbrpedeyllfxreyoeattrtashmpr1elsee)ucnaimsrnmcsaeaeohn,(ptlGoaioliooweltf-nyensllsf,ylGlioiuessGfso-aslG-trn1hifaene-t7enlghwe)ldapiiitsgnisna:Gcmikbk-t0ealh1ee.lnd72el. Mg3.04^ 3.96Ol00F.10(OFI) 1.90 sea(T1GtimchadP.-nee,o1ardu7easr)nhtd3niot)aaa.dwllnoyFudfnscelihutstrteroteoeomsrmmhiniboaocoeewnallialiastptleneayra.anet(lifasGyceelaswy-nel2sts1ite1se)arfnrfrosooetarhrrma.saHspnToslu2fhue0mdmea bafepsrnedmeordrmacotlofeflltnuohabtotemehreiAexnomrceurentanaswoitslnslcedlFrysoeIpp2f0iedatFclusiaieeonm,ndem1t4on9Itas6nhdt6,iohesbe(AToitslafsa,imcbntCoaleaenladlcs,l 1The samples were fused in 3.5 grs. of sodium carbonate, cooled and leached out in weak sulfuric acid. Samples were then transferred to stills and 100-125 ml. of 1:2 H2SO4 TRICLINIC TALC FROM GOUVERNEUR 755 T ablfero1.mStpehcetrGoogurvaeprhniceuArnTalaylcseDs iosftrTicatl,cNaenwd TYroermkolite Talc (G-l) Talc (G-l) (GT-a1l7c) T(rGem-2o1l)idte T(rGem-2o4l)itfe Si >10% 20-40 20-40 20-40 Mg >10 20-40 20-40 15-30 Fe 0.03 0.1 0.1 0.2 Mn 0.03 0.01 <0.005 0.3 Al 0.03 0.1 0.05 0.2 Ti Ni Cu 0._0_0e1 -- <<000...00000155 <<000...000000555 <<000...00000255 Li 0.001 0.005 0.005 0.02 Na 0.01 0.05 0.05 0.5 K 0.001 0.01 0.02 0.1 Ca 0.03 0.2 0.1 5-15 BSra -- -- <<00..000055 -- -- ---- F 1.0 -- -- 0.30s 2100--4200 001.-.132 - 1 . 0 0.03 -- -- 0 .--1 - 0 . 3 0.1-0.3 5-15 ---- 0.31s a Arnold pit, Analyst: C. L. Waring, U. S. Geological Survey. b0 AArrnnoolldd ppiitt,, AAnnaallyysstt:: BBeerrnnaarrdd SSnnyyddeerr., Battelle Memorial Institute. d0 --Arnnooltdlpooitk, eldavfeonr.der tremolite, Analyst: Bernard Snyder. SnyefdBeCroy.lowreletsschteremmicoallitaen, a3ly/4sism. ile SW of Wight mine, Balmat, N. Y., Analyst: Bernard firnraonTmgaebwolfeofr4llud.owriidnee cloocnatleitnitesinwtheirse mmiandeeralt.oTohbetsaeinflumoroirneekannoawlylseedsgaereongivthene zPTct(S(wG0ooohh0naTom-ye1e1rshsesd)6ciee..ci)rlscayOyOctrlsaioyfnntcnptaaslcerdrrtylyntasoseslhptisatltsheaayhrerblegeatlcriiispceotnrpssoysuweyo;.asr--rcroet(aasaiGnamTewslelt-aiehinvlnvdld,ieaceatsare1rwsirt,ia7eapelr)tiytletert,ycyhcaopintfiwmrfeoswsutrarleeffnuhmsinnenciccsstseaeoettctnpgucepotctrdld,rsalauileetiweerbmnyurdciiyedttnocdehboglradyitystariosesifnXgmrts.maolon-ialmeTngrselwalahhauyltethr(hp0laapyte0stedyte1ocfmaArc)ihamboro1nmfrnnnaaiocoqdicnoumdleu-tdss.imveniispalnnie.yrniitniwleenuarstigsahtydtulotelorhiwrinces.. added (volume kept below 150 ml.). Fluoride was separated from interfering substances according to the method of Willard and Winter (steam distillation at 165C). The distillate wtearms cinoelldecbteydainth5o0ri0umml.nvitoralutemceotrliocrifmlaestkrsi.c Ftilturoartiidoen.content of the distillate was then de 756 MALCOLM ROSS, W ILLIA M L. SM ITH AND W ILLIA M H. ASHTON T able 2. Chemical Analyses of T alc (G-l) from Arnold Pit, Fowler, N. Y. G l" Ratiosb Ideal0 6en 62.68 3.958 63.37 MgO 32.33 3.042 31.88 F H20 ( - ) 00..3438 0.--096 -- H20 (+ ) 4.79 1.009 4.75 100.00 Total 0 = F/2 100.61 -0.20 100.41 Mem0 AorrinaollIdnsptiitt,utceo.llected in 1961, Analysts: Joan Lathouse and R. D. Foltz, Battelle b MRagt3iSois1Ocia0l(cOulHat)e2.d on basis of MgJ-Si = 7 .000. pspTpbgcthahrroerhemeeoTsoTneccuttwt,re"eeorpemnssTaogNsssiiaeriissttootaolaaaclpCntnrslliot"chucthltcsrpplmecca.oehhmrCmrrioXoyyanatCetesspeo-ortnrt,rpolagaagta,llaGsl.rryissaraanoAeapnpafpfurnhrrdlh,eolvootsswemmstcgmharordsinmefvyohesseensotraapsuhtnowmmtalrdecre,liupaplsnciNatclln(oeaegtCT.imucasSfYaGGrtvompr-be.e-r2o-sl1ol)(ente7tiCnyhgud,w5pwSidem.soee-noet1nrirTtrmsceii)ieesychacalsmaeiacoiast,lxnnrenlmytasdirteuhcoamise-naetloltacliiairsnn0tnlyy-taeiekutcesfrdeliedrrecnntoalirrltwesgmnyiracdiiidpsnitcvlttyaiyahlaehnbirlnnkaiysodcti0mfafhcii;rmsneppotett(hrmrrhptITeeieeBTelbccareuaeeuXscbsess;tf)lp-Bissrr.eoratiogiaaohocInme6lynnnee.r. T able 3. Fluorine and H20 Analyses for T alc and T remolite" Tiontawl eloigshst(pHe2r0c+enFt ) Talc (G-l) Obs. Calc. Talc (G-17) Obs. Calc. Tremolite (G-21) Obs. Calc. to 110 5F15100--1505000 H20 (+) 00..5373 04..7408} 4.79 0,0 4.99 04..5418 0.12 040...314392} 0.0 4.96 0.42 4.10 4.54 00..1015 01..4350} 0.0 2.37 0.30 1.26 2.07 Analyst: Joan Lathouse, Battelle Memorial Institute. TRICLINIO TALC FROM GOUVERNEUR 757 T able 4. Fluorine AnalyseasndopOTriaglicnsfrom Various Locations Sample G-l WGA--137 4277213 E 25 30 26 11 S 423 7 8 31 29 32 28 14 33 VVA-lb 3 27 13 Location and Origin %F Gouverneur talc district, New York GGoouuvveerrnneeuurr ttaallcc ddiissttrriicctt,, NNeeww YYoorrkk, 0..4482 .45 metamorphosed magnesian carbonate sediments. VVaall CChhiissoonnee,, IIttaallyy .44 .31 mMeutrapmhoyr,pNhoosrethd mCaargonleinsaia,n carbonate sediments. .36 metasomatic replacement of magnesian carbonate sediments. IrnepyloacCeomuenntty,ofCqauliafortrzniitae, along dolomite contact. Bnimado, Bahia, Brazil, .34 .29 mCaasganeNsoiavam, eBtaashoima,aBtisramzilo,f siliceous carbonate sediments. .27 lenses of replaced siliceous magnesian carbonate sediments. Wschinisdtsooser Ctaolcu-nctayr,bVonearmteonrot,ck, not of ultrabasic origin, but asso .26 ciated with ultrabasic body. Amlelatammooorrpeh, iTsmexaosf, interbedded limestone and magnesia rich tuff. mMeatdaomco, rOphnotasreido,mCaagnnaedsaia,n carbonate sediments. Dreipllloance, mMeonnt toafnad,olomite in fracture zones. mFleintadseorms aRtaisnmgeo, fSsoiluicthifiAedusmtraaglinae,sian carbonate sediments. .20 .18 .18 .17 Esmeralda County, Nevada, .17 metamorphosed quartzite lens in dolomite. TmDoaenutagsmay,oaRrnpgahj,oaSssetohduatmnh,aKIgnondreeisaaia,,n carbonate sediments. .16 .11 mThLyaaemdmtaroamoiutlohlliereppraCmhsoo,asulMelnydteyaxm,litcaVeogre,enrdemsbioaannsti,ccadribkoe,neanteclosesdediminenstesr.pentinized schist. .04 .04 Zaaulattmeormbeadolreupslh,triPachbaialltsiepicrpairtniooecsnk,,ofasuslotrcaibaatesdicwroitchk,saesrspoecnitaitneed.with seqientine. Talrtaenresdvauallt,raSboaustihc Arofcrkic,aa, ssociated with serpentine. aPsrsoovciidaetnedcewCitohusnetyrp, eRnhtiondeepIosdlasnidn, greenstone. .01 .007 .004 Note: Sediments refers to metamorphic rocks of sedimentary origin. 758 MALCOLM ROSS, W ILLIA M L. SM ITH AND W ILLIA M H. ASHTON Table 5. Unit-Cell Data for T alc Arnold pit, G-l c* pb Ap b oaMMr(AAA))) y System Diffraction symbol Structure type 5.27, 99999080..4104543'658?'' triclinio C. ITc 1982859540...42255057793'os/s/ triclinic IP* ITc 955...423790 19828605604'' ' triclinic ip . ITc abBEACDCP--ZsRSHGseetvaertetytynmtiainnndngpegergilirrnec(a(k(paca1nsrnon9edd(3ndf1e4vB9BPr)err,3niroe8nHitwdn)iso,adknsnrHleefea(rtoaytl1irr(9sndf1(6eog19t6Cr)94t)d.i69o,n0)uHgC.)n),oatrMuyfn,oatMrynd,cdhCM.uodrui.an.ty, Md. B cDE 1958...128061 1598...218738 1598...219734 1000' 10015' 10040' 1598...219585s? 9930' monoclinic monoclinic monoclinic monoclinic C*/e C ./c - - 2Mi 2Mi 2Mi 2Mi fCmftbsfcBTatAto1S1erhiaouere9.potho-rcr5ceaerlgeU3RTcotnlnmumh8isymig8ewlohocossni4nciensmp,l.tpebsoiianms+da:atqtsealeOment-tato,euscn1achepr0gdetupcipTeeg0eysre.iixmato0rtodisvtll0panihaxle.0mbsecce1optrkmdase2andnaooeA--nrefpevdt.llmiebraldBctlanailoyislpt1tanTmasarrepiaoremibre/yin,indhgafe2nohaoendlfegireavybotprsovdT--mitrnrtitsmlhterelshdoaaveoidoeosre1tsnerebttoatiuynr.aat/nildtWllrgaeh2dCeillhueacsclcce(wesyseiaene-1oans05tnocmgho9itnie.c|srfteesosf6iaeoaihoeao0eXnntfd0sntmsuuu0rsttghce)ur-aedsto1sp(ireoneha.lprm1.oicltaatfenetehee9lsnrTAinyTtupdiddvecco6ewndanloohirearm6deiwmupnlfiopnlce)pcaZtlnor.-t-itesRaotteithlicvliC0ohanychGaoldtvPeaayy-oy-enilfvcyrt-acptaotulaeroaehleythengensiulorlrvlaptdndiesagflssnipsitmertrttaltlohla1eoatehybr.iteuooaao0mricolmaeaxmecswnnTaiafntspad,ttdrdeoanhih(RemterltxcssGhheeeusiPBattalviceeip=ssuih-ngGymitntrocetoln1hdartoehnA)oimair-uis.idcatwclnentln5ekyracsetprgmenndvn4ibrtetlasdalueo.eugdra5oyaril:nrbglmsnfiseecTndbe(v+ebtiyGpdd1ivypeshetbtiioe9hp0.tfearnsreetiBnHnom4ee.nixonr0Rtrda9tfnrtiiegi0heerobalnm)teecoaana2.rehlwonarfpysprdano,aTpottepnnrsirwssnhctodnisiaeaefoomrtc(usobooamihry=1nckfi1nmrflrritso9alks9eptsiamyitt6ittrvitn3alnhvhhn6e=ieot4ai5liidengeeeocs)s,ttf.. TRICLINIC TALC FROM GOUVERNEUR 759 T able 6f.rOombstehrveeAdr"naonlddCPaitlc, uGloattjevde1r1Xne-uRra,yNP. oYw.,dMerinDinagtaDfiosrtrTicatlc (G-l) C-setting hkl P-setting hkl (calc.) A (obs.) A 7 001 00T021200 110 001 001010200 110 9.333 44..656678 4.531 4.523 494...563684 VS ws 1 111 4.316 111 002211 111 111 101 Oil O10i1l 111 4.298 44..1028521/ 4.14 33..8886521/ 3.85 vw vw I1T122 002222 112 100122 012 33..540841jf 3.287 3.243 3.43 w 0110T1322 011001322 333...100164110 3.115 s TT3 113 2.751 T11330 110130 22..763332 130 201 121210 22..661277 2.632 wm 200 210 2.606 2.598 m 131 121 2.590/ 023 013 2.588 131 111 2.578 012331 011131 22..459505 2.48 s-d 131 121 2.472] 202 212 2.442 113 103 2.424 201 211 2.415 113 132 112123 22..348029 132 112 2.361 004 004 2.333 2.336 vw 2d mbeCCaausluKcruaalbarltaeed:diaafptripoormno,xtNihmei afftioeltllelyorw8(Xin=(g111u..n05i4tA1-c8)e.All)p. a = = 29.028446'A, .j3= 9855', 7=900', space group Camera diameter: 114.59 mm. Lower limit aram CT. eAtellrsc:a0lc=ul5a.t2e7d5, 6= 9.137, c= spacings are 9.448 given A, to vs (very strong), s (strong), ms (medium strong), m( medium), wm (weak medium), w (weak), vw (very weak), d (diffuse). 760 MALCOLM ROSS, W ILLIA M L. SM ITH AND W ILLIAM H. ASHTON C-setting hkl 040 T able 6. (Continued) -P-setting hkl d (cale.) d (obs.) 020 2.284 2.284 2.219 2.103 1 994 1.871 11..763818 1.S58 1.527 1.515 1.320 1.296 1.271 / vw mm--dd swmm wvniws-d w ww vw aomptoicunant golefs.twinning in the crystal; highly twinned crystals have low A m ph ib o l e s smCoh3(sStolSfaSinMGinepGocfncai/ettph-i.n.err4ecnnATEdul-2eeoticslt1Lurbg2mtr4cihn,unieho6+rmeGia)mctgerismwnf,r,ewcotre-oetegeaTrKai2lehioa1ltergxnGrnltle4ai7eelhe,mwcrss(iar-mb)ncpant1;e2sac.raegtotltrcpep9e1ineoheorloileTlhall6etdveidnienopifsrti7mt2hoeCdetnoecelrf,ca,sNeynaneosgrruoolooiTostmapla.anraluilamuoismliveh.annhrlonotmtTdsvyreaeasoeha3ctl.eiehnl--Te;yiintwvf0iypsvttlhanefd,owte9aeeymslaeehetdTe.ab-)eNerresvemcaraecseliwdotla.geoarlrirlnttllinye-oriouoydYonwtcfvigs1ansffpoeegre.tv.opiAmeyartretisctaacti(aahvmaQslhrahnnDorclmllrtneceliiiekaauluutcnnecooayonhlalpaintellnmyWicultaiezidiinntaeeaszcenmmoteptverse,udiao"mcninilgs,Teedtlrflaoee1odachisinclatsFlm8(ntfst-e"taodiTcbi9irmerbtvhrntyeoe(r2lm.ioamreGeeeeropel,e(bdoTlttpGximniomapwa-ln3irnaalhaerlrt.l-la.ebnnee,oegegstc1ec3eearsid1Teels"o91iwt8adisar,lenne,nht7y9lnpe(a7sgci)ae2s,aGttdcrst).oasreh1enii3ooe(ln-aTsnss)"eoacaOq91cmmmna,hlolhrc36ufslytamHoltipmuooey)a)hoeashlsw.orrtsys)lareeeiliia,setTsnoezsactsiHznitsesnxgeotvfaht.hvrditaicdante2veeefofaahrt0rmrondrnmehetnryotsewoordieiacsremotAratneuhtmkhatetwnalp1aerAwsiilicedetledpucEtisrtaesrocesdtrlremndGlhoeeofevpc(sowclstlmGra(oteuualrllrewGoaleevadusorly-Glocacimo2re-hvraselid-d2tteipmr4iinten2eentoxaett1sai)yrdd1gdeeeet,l-.,l TRICLINIC TALC FROM GOUVERNEUR 761 T able 7. Tremolite Chemical Analyses erom Engel (1962, p. 309) Weight percent 9 15b Atomic ratios Qb 15 Si02 57.83 57.76 0.57 0.64 SAi1 7.915 7.897) 8.001 0.092 8.028 0.104J FMeg2O03 FeO 0.20 24.25 0.11 0.00 204..7134 MFeg3b Fe2+ 40..092415 0.012 5.285 O5..0O3l8]l 5.066 TMin0O2 KCN.a2a0O20 1021...084132 0.05 103..0276 00..1174 00..0298 TMin!+ KCNaa 00..030235 01..062755 0.044 1.744 001...0090045471] 00..007136J1 2.033 h hF 22oo -+ 0.06 02..4019 02..1338 0.26 OH F 1.907 0.1781 (01..182800) O O OO 2.170 (1.882) Cl 0.01 0.02 Cl 0 .002J 0.005/ co 2 0.00 -- 100.10 99.81 0 = F+C1 0.17 0.11 99.93 99.70 b" AArrnnoolldd Nmoin.e3, 1m4itnhe,le1v1etlh, Fleovwell,erF, oNw.leYr,. N. Y. * Number of ions on the basis of: number of oxygen atoms = 22.00 and (OH) = 2.00F-Cl. sotctsasohoutsafredlcuceaMihicmunMugtmtaumpes4.rrahesnCiatib,hdttaoeodeslFmeaeMsenisinsdgiet,pnrnaNueaMtprectapert2frdu,eoetrnohrcMemtreieaiwMurbM,leltMae3hid,seuq2ioM,tnuleMainas2tr.n.o,g3tt,IaeTidnatehienMdxeeadpsl4MelsMysrmc3eittp4taseh.alil.aTtlenecWhycsiMaeniwatgt4islhohkmssneaiootarslemueil,elareseshshrpooootmrwhefrueeesltadevthlalnekaeltrtraagalckkmiteaennoraleomcyucwipusealeamtesi2nrduot.t0hgcnoeh0essrr lwTetPaoxhhevsbyreeoesenliucdcmmtraeiyoalordnsnptteoarrcoeloulsrmipsnaieoainrlcpltgt,ieiptersebseap.oat-asitrcpoheXenocs.g-piirrmnStaoigicyeunlanepglsslltCceyu(r2Gdycp/ris-meye1tsars9,flt,eaoCaclf2mnt1ptd),hhwoeoaXrirttleo-Chargv2aereynsawnsopepdihtnoehestrwviaasidadhl=nleeoyrdn9w.cmt8weet1ocrh6ehnoiAmnotfei-,oqmtbtluwrii=eetniesmne1.nrG8oaTi.nll-0ii2hgc4t1ee.,, 762 MALCOLM ROSS, W ILLIA M L. SM ITH AND W ILLIA M H. ASHTON T able 8. Unit-Cell D ata foe Teemolites from the Gouverneur, New York T alc District G-21" G-24 G-16d Single crystal Powderb Single crystal Powderb Single crystal Cab (((AAA))) 0V(A3) 198..8014 1054.2370'6 904.4 198..801487((85)) 9100544..22379(65' )((33')) 9.796 18.04 1054.2285', 903.9 9.812 (2) 18.077 (3) 1054.24733' (2(2')) 904.5(3) 198..8014s 1054.23851' 904.2 System monoclinic monoclinic monoclinic Diffraction symbol C*/* C*/"f: C*/* a Lavender tremolite, Arnold pit, St. Lawrence County, N. Y. thobudsWOWanbhhdtiiatttiheensettrrdoeefmmfarooonllmiiAtteenl,,eg3Aas/srt4trn-oosmmqlduilaaepnrieSdts,WmSretiW.fniLunigteaehmwstergmenintvicneoeenf,CpiNnoo.uwpnYadtr.eyer,ntdNhae.tsaYes.g.iven in Table 9. Errors in ssclbau/stBtggepa(3iohpui1rx=enrtihn=oseve9oomaiIPTfaegttsse56niutsthsh1rgctlhsmlne6.epeete0eo2iee(oe)ctvans-1an7Girrnrfecsdecn(ereho6deusr1y-nie5,dpmtdna1yzsiTn0hm5ainrvi6easit1ioamoeea'nit.mtd,oenm)s-alobntsfipdcellhaTolnitGipeaehennepmelptlavclt-ijsytrhatlhb32abiio1Teyobnhsonl4tio0=lmnadahdsetegat)lre1dPlobo.waeemnar0e9gswln.t2wvIdnaPhearpo.4runT\e,eseaen2/mS8nstsruhrmcfp3sr\eeope.pdo6nii/eha0cfmse-Xmeredmmtrs'aoeco.chrtaseex-nihxtrtopeeodnmrrhriTdteacllasfoair.PeciedmaehoeymgtwhbAr2pnatenmeoriGiooPpp\htsndiaosatstooh-a(wpe2shhpnhwt2pTlesiOdwh\ioiib4hesd/titattlisfirtdmhoe.hacbbnphocetneeplshleryotmeXiradeereaccae6,maenedoodi1--iXmc=lsam80srldpllotaecasolai)h0i-pwaaty9tes,.mrmyureaershin.sat4ebctihSieheipsyfpodls8bedbloniuoiotnhldnongwayusaprwwtsaloiitoereiveloostpaaaBes-n,arrseensabhrtaiegmo6hmmsofsormlicguwbo(e=heseavtaoGppiniroolnov1tenlaelohsic-wmg,laet8ooxo1siti-retnwrwbht.ciebcy6owae0sdouideeotehsstpis3oialillxnttarGoashenla,aiiotkitnnergts-rwldTifdhnere2deennieemraaarh=4mtdtecnmsevtetbaipxitGhtatct5eadmicblepiaonetherl.n-rcyh2oytepcl2opgnadtite9lsp14sastheilroBee,ys.tqc.wr)oeirGsrdpaoboumnrTeoaecl-atwpoaaennl2aheaoctrtreeols1kgnddooneeeee-..fl TRICLINIC TALC FROM GOUVERNEUR 763 T able 9. O(bGs-e2r4v)eGadon"duavnLedarvCneeanuldrceu,rlNa(.tGYe-d2. 115M)XiT-nRrineagmyoDPloiistwtedrfiecrrtoDmatthaepor White hkl Tremolite, G-24 d (calc.) A" d (obs) A I Tremolite, G-21 d (calc.) Ad d (obs) A I 020 011013100 T20i0l 002242100 211013111 201124351110 240 320110 301610 2T4511 221 330 313511 T02641112 985...041030390 985...040519024 421050 5.087 44..877435 4.519 44..424011 433...089278050 4.875 44..755213 1100 30 44..022089 155B 3.880 15 333...336877293 333...321771936 333...100011336 33..217220 65 100+ 32..090442 32..090444 5 45 22..890315 2.727 2.802 25 22..760068 2.712 100+ 22..555984 22..555974 355 9.024 8.405 55..018023 4.873 44..751429 4.442 44..022013 3.984 3333....836387780330]| 3.374] 3.271 33..110179 3.016 33..000028 2.939]l 22..983072] 22..772075 22..569019 2.559 45..806466 44..753194 61005 10 4.197 50 3.878 10 3.373 25 33..121754 85 100+ 3.013 5 2.942 35 2.727 2.709 6200 2.589 15 " CuKcv radiation, Ni filter (A= 1.5418 A). Pattern taken with North American Philips X-ray diffractometer internally standardized with sodium fluoride. Specimens contain a smabllAalml coaulncut loafteqduianrttezrapnladntairrosdpiatcei.ngs are given down to d = 2.530 A. Calculated spacings less than this are given only where indexable to an observed spacing. c--5".C27a3l,cu/l3a=te1d04fr4o3m', spthaece foglrloouwpingC2/umn.it-Cceolml ppoasritaimonetebrys: el0ec=tr9o.n812micAro, pr5o=b1e8.a0n7a7l, ysisd: CCaalic.5uMlantoe.d3Mfrgo5m.2StihsOe ~f!o(lOloHw,inFg)2u. nit-cell parameters: o= 9.818 A, 5= 18.047, c= 5.275, /3= 10439', space group C2/m. 764 MALCOLM ROSS, W ILLIA M L. SM ITH AND W ILLIA M H. ASHTON T able 9. (Continued) hkl 020620 202 350 334215421220 171 132 261 125022 280 331579100 354341622002 530 414712 327223 582 133 2,10,1 461 1,11,0 303 600 Tremolite, G-24 d (cale.) " d (obs) I 2.550 222...553843130 2.335 2.530 25 2.379 15 22..229752 22..226975 2200 222...112680428] 2.182 5 22..116320] 2.164 2.132 55 5 2.040]1 22..004105] 2.000 1.965 2.046 21..091959 10 2150 111...889866824 1.961 10 11..888674 3105 111...888310705 1.805 10 1.726 1.716 11..678153 11..678150 155 1.683 1.649] 111...665418896J| 1.675 1.649 1.617 10 40 15 1.582 Tremolite, G-21 d (cale.) Ad d (obs) 2.552 2.541 22..358300 222...232739246 2.531 2222....223396735896 222...121086706 22..127170 2 161 2.161 22..014239 2.043 2.038 211...909619259] 21..091958 1.961 1.962J 11..888694 1.892 1.864 111...888103266 11..883160 1.725] 1.720 1.716J 11..678142] 1.685 1.683J 1.646 1.648 111...656481867J] 1.618 1.583J\ 1.585 1.561 I 20 100+ 4250 20 105 25 5 30 100+ 15 311500 15 15 10 30 30 20 5 (Table 9 continued on following page) TRICLINIO TALC FROM GOUVERNEUR 765 Itkl 571 402 1, 121,821 246832 2,10, 2 0,12.1 591 731 T able 9. (Continued) Tremolite, G-24 Tremolite, G-21 d (calc.) A1 d (obs) / d (calc.) d d (obs) 1.555 1.555 10 1.551 11..551244 1.525 10 111..455701122 1.445 1.398 1.511 10 1.503 11..447405 11..349383 2100 311500 1.365 1.365 15 1.555) 1.554 1.553J 11..552124 1.530 1.514 1.511 1.501 11..446493 1.468 1.435 / 20 10 100+ 5 75 aaca"-oneatmdxrxetepramseotmosoailfnetiitltoeyhanneffgirttnoloreeemmso(pf0toe0h2lc1eiit)3meW0leaa'ninmogsdfheoGltPlna-m2e1ei6i.a/"nmneaHo,natdiShmset.Gmpr.hL-a2Tiatb4ewho.relriIeaensnltliucietsedhipyenCrbo1aoyb2uca/noBmbtmyolyw,mseNvnotetn.iwrnyY(ag0s.s1oims0mfh)aoiBdplwaeloariwnnoingnne T able 1E0.xUsonlitv-eCdeflrloDmatthaefoGrotuhveeSrenceounrdTArmemphoilbiotlees Phase G-24 G-16 Bown (1966)" cummMingg-tonited a (A) b ((AA)) DiffracS0vtyios(ntAems3y)mbol 1958...25084042 818024.625' moPn2oic/l*inic 198..04 37 g 5.28s 10155' 883.5 monoclinic P2i/* 1957...529175 818020.00' moPn2oic/l*inic 1957...429693772 m81oc70n2*8o/.1*1c4?li'nic (Ta"blDea8t)a. obtained from the same single crystal patterns as those of tremolite G-24 (Tab0bDlCeea8ltl)a. obtained from the edges transformed same from single crystal the /-centered patterns as those cell: a =9.87 A, of 6= tremolite 17.95, c= GT6 5.27, /V3=isdw10Ua9nn.5aitt-h,casepnlalacndedagtGraohuoopfse1a2(n1/m9ir6.o5n). free cummingtonite, MgiSisCLifOH)-.:, as extrapolated by 766 MALCOLM ROSS, W ILLIA M L. SM ITH AND W ILLIA M H. ASHTON /0TrTiTgptttacsbadodeirawect(CTaoetSG(+nshhheoirSi.fnrnTxorntfeeeifma=chh0mehafeh-yeteofaesnddlrRMnt0ITdlhaet2i0emee0tareesricsgocunonhtci.1tib4st1.coeahctl0vlr2eelgplleeiueueo0aaaata)lltmvsmsoMaooacea0linieemahlnonM4mllmesrealvimPwrrmnstd2disttlvn,oapercilrteAororto9enieedeitie,pd2e2eeregneorellpoPppn-)ttao,n0o,aelielotmhr5eenhlcn-ifcoathltfnr.1ahiftvlt/wNr9reda'iicedoendaamacm,sr9mdpanMticboeecGc.e6tolielnichboeea.6vaiiloteotssaloctreasmm=hyaksarro-deemeii1glepefalilaYouaa2tldnoompcu=ee)f6elrarvopmnrlsr4ep1psnggdaaii...plmoedscesttun9ulpaoaax,ya8ohPfreartiiitrepiSb1aroemrmbaarTrtrh.na-auatnsoo(b2t0eoole.riitooermiaGpjiimibn6dhdeg8eehdaxesneiip0df-etdbmr.ddOrce2.diotseiirtorai-ioeeis7cleeiooneWnyiIihio2erGme8de..u2Trnnttuctnttltndn1.2s.ueemeceltioe+att-hXpsbhEt(atceadhtem.idt2,p0ltihtTaOrsoehtTioietmteaasocieal40-.eoutbmnoigotodenah0jcnanerHwCrets,h.hslroeocoico0nraseettsles0dIsetcpivieeelehtp,2fteir-stemnpy0naetnol3iltuermaedli(ons/rtaanrmngeh2atGoaemmp,bFmianropcoosfeepo(trl)ttrilanahpiioiep-1treblta,clrd)Gorpts.ananhs2ietlhtanapne29drlilacaissrdtxtocthgt-m4eclnoorseTtcse6daehre-abums2e=reiieelsiah)reposen8dmtpaetmtrys1hglliiei.noqoiettpsapyhexct)lte5fatsegoshhitsfhiwuptoothhertlyiiT.rtocsphCesihheennoe2seotmealaallluaeolr(nhateieshrleia9eatpalrllrayhscltnopnt(etsmcrieGaoltevOieg8lXerettii1ptkseseewirarrtsftnh.oeseati-peG0tpoaolme6htsahl-Tl-vie2g.abiattiM)tm1rhalemscdmbronromi0rh-lh4eeteneaCo:av)mexe2ocoiasogtsln.la(oelapdtlyof0aselaao4iyotbs0fdtXscaoeinleilmlnoolomr,dshtm0c.an0i.lt,ie=halueopt3lgs.-tyfhtoemalm11deiic4vaam5eaeeesrmaMpnoalCrtMnwema)9,loaaiwvaal=haeoeloiiwsnnslpncw.shetytgnnranseleo7adesp-ognaotTm(hsdl5erdietd0geiu8co1nec1aislntamae1asit.maetdameirh.h2o0dtvebi=f.hniet6gltlc2.NrAaotnlmnSopeh1areioeaiictmoM0hlihaienecrahemi)rsortTd,pnua1volntw4a8nauotdaales.aessi0hog.0iss6cthmtdinicdltpfs+lentphhc2tnar5o2bhlaf=eB-aho(w3isliosMgee.aops2resametGi4aen0otf1hfeoaawneelraSqhu(ara3ohnn.niicxo7O-nc.edTwn0pssibiaugnc:9ltTidee1ee8besftsug.-ah0deloaaaHoha'no9i6aoearnaae0movlh2seninwlmtrakioudXm,n9tmnmlbt,tce2hlc,eeeeevdi.fetsae12t=,vel-phisoenhGd-teppeu(rFa/ennor'is53riNro,tcOndedtighnlg9cl-tgpeppoitta)p=ecenas=l2ireui8wahia.ogm2atoetyaHrirhrX5tmobae1pir.lsldttoeono1wtcecG5o5iroadhpolhd,tts-ydoe.pTdpiiaaie0Faaa.gairel6iaartld-antuga2snreibltmvheiiennn2nhahr1ucv)steolee+emot7httssdnyire4iy2dddye2deaeeeeeesf-r.,,.t. TRICLINIO TALC FROM GOUVERNEUR 767 lpbdwahiumifottfhretcaolomlcgamtreaiaopnpnaoyhrsessirnienmsgfghleuploeccwrtohicobdrnmayesbfsoiltanryapeiltlpeeppeslryaasorttntithenhoragaunntnisnctoheontedfheesvtiehnohcelOouGlnlm,-ad1hme6lalepm,laelnarapcndehedinbaGhtor-ello2elf4rnpethealhatenastdsi.cveretyihlssyetpaslrX.ters-Torenhangyet D iscussion ff4rsacttaftocwdclTtceeirhooioerrol)faoeoaoowieiee.cceduTrnfnTm((tnlnmcnakbihabincAitwnmahflcsac)sa)p.odio--ori,loeoadtsmtcaenltebylTfiTfemrteisbtlrennaoofrap'oorptelaaTuysfettmptrypfmfnwidlryelesuilcaccclecehact;ra-ettliteocarnssectnthh.rafstfatfthlnewhaoetniogvareeurmicontoncohtomndeooarswkdwtmtrrmeaaeefiteodaeesbohnv.f,spdessrlfep,lierteecedoapvtitscp0hpleOmtuholutshaeee.oshehinsb1ierdcprclIoroitasteita,ec1hoTiesyowsrniomsmnmfetctmeamshtciiscsttnkvhmrgipeamaohcofctteesenlnlhjrsohiwufsniaup.eo0saypeosenuatrdfsotebon.yrosurrTpvi4erirelmcuodorcwl8eniypiohomtlaefnsfonifoig.toceecerdeopreymvbaskresrrcoedvrehoipoTeyeeiisucscmmlenwtraceleii,ssokrotcdvcfnvkbnsraoeoi,ofeniteesbt,sernefonatbhnusttne,ipeoaatalreeuycnitticiclmnpenfnndvahnorimtdebf-reaedelhctaeflmcseemlttvcuglmpee.ryhaahtdybaoeprimooswodirteezeearrdTrtlbnrbepeyleebhitrawctooeonayridyfxudetoitmoziif-wecolnih:rdvronlcten.hmeetaeaaofeecR,ahbtor0tynftosdacbteeaeeaar,.teedcutico0-matarnyfrcraotdat4drfelrlurunhulcemloneoctioufcfwrreneepprscrlmicfriopuisrpnioell,ciekvqrhauclhorhtbflnlsiaectahmiuisacrrnii,cthnmndbiioenseeseapenoeeiadomommmndicrasenfynracltocrmt.sleie.eoesoooobcBbntAdotaolfenmwatanyshryrtolnftldcubostlteafetaeoiohmtlcwtcmhrbtac-hylnfhioitolcfoesasnaouefteaoomsnstuorgnrbysiflrodbda(glerlano,(pseeiocTrmoi1l:hlcernrhtaitwwt9nmtiaisaerewiifoh6tbinaastiteirrbaoennreea6nmtrarleaiydneoeddgees)t, ((((1234)))) HA"BTaranlarsoflaoclmd"rd,pmCiNti,nooeuSr,ntt.hStyLt.,CaLMwaarraowerlniyrneclanae.ncCedo,CuUon.utSyn.,tNyN.,MeNw.e8wY25oY1rk9ork mbroTafyrenectgrRaanemolo.cslioSsiut,roemp.mP--haeiapsEnominkdfgetisehnaolendthadtiruenemWdmGeooE(ielubni.tvlggee.ee,snrlnTw(e1(aeu19br9r6el6e8me8)n)7insr,hiiscnaouhngwgeagsddlyeitsisshnttiarsimttc9httabhani)teng. amttTnhhaheeenseeigtseeaav5nmt0iedp0tsheeene-rtecaoenetxur6pigr0ceei0hvneesoCdnef 768 MALCOLM BOSS, W ILLIA M L. SM ITH AND W ILLIA M II. ASHTON tsilatGnrarobeemollmmueucetvaooliqlolellacuiinreittnauee.inemnAuctsi.horttprieospeeOxucsmailhnsrdoioetseflnbtcdistteomlewyoasval.niineatndgrhtgyachanauibegnssoseheetacfh.tulosenlTompdhignhpeaiaevmusraeenappstdiphuneeirufbraeosnorsrtmalamentnihacxdtetieeiirndooMogndf4ittotoeshenxietswpetophrhlcoaeuiadrctnaeihuogxchnewteoenallneasdttsmhieaoesenpflroplsi(afcr1oehe0ltiche1ididne) Aftioolltlneorwaoftiinoagnnruoemtfrotbhgeerratdroefemtaroelltimetero-abltieitoaernirnosgcekqssucehfrniosctmess.--:thOepGticoaulvearnndeuXr -arraeya esxhaomwinthae (1) (2) (3) (4) (5) Sample Sample Sample Sample Sample GGCGG-S---2621-t,16,8r,,Ie,Fntm"torWAtreTweoermtrilmaolrgineeltnoheocarmol,t-a"tlilfiitnoNdot-memetl--nt.hi--iaptinaoenYli>elctp--ea.--atnhantyslhtcaelholrnrmpopttehephin--onyhteplyTil,nhilatleNyeilctl--.lei^YTtetaa-.l;]lc-cG?ta-l5c, Fullerville, N. Y. bpmqimciTttSsnrroooutreeaeelaoaeAamtmgetmrhsmrlaslsnisoelometpmeooyll(lolsicilGeyoeittfiii.leertugaoloepti--m.tcfanhu,soehrnTgevrdyitGdchsCeasavqiw-riltSnl1scanaeui-Bit6cslera1thilsay,ohunrli,oetinirreGtnmpefcaeyGisdhl-n.baecs1-liyeSstlleaph8Taatlry,ei)elgglhspiccrutteraefraiseanom;o(nt.i1ifiraabdnsneo9imTlpaneon6tnbpdehnesGt0f-rleeo)p-yrgeattat2ohradrcro6rmalegodvecdittiaun,soavrscurtueeelheohcsauhmdloemtentaastwleotobay.vmohGvlllefioteicepottedpaerhrgrureycnohecravniasoyomytaectniwmlfaloredirlilnnnnienomlteiteearefnbruee-pnop,oeg.yrrrrtpgcraoTtaeairaneadartaaihdxhlenullrdcelaasesecyeo.stdt(tstelseeoauutbr.rnrlgptpoeatib.afeeecoan,etnrranlstuGaithutfaoeritosen-ilreroeaplrae,mmamnrtoimio.Gnmeoifaflolt-pnTllia1ittahonhiehr7eotiyngdees).f Acknowledgements pattWerenswaisnhd thoanthdalinnkg Mthaercgoamrept uHte.rAcopmplpemutaantiofnosr,pPreapualrWing. WtheeibtlreenmooflittheeXU-rnaivyeprsoiwtydoerf Mcryinsntaelsochtaemfoirstrthye. electron probe analysis, and James J. Papike for advice on amphibole Reeerences Bowann, tMho.pGhy. l(l1it9e6:6A)mAern.eMwinamerpahli,b5o1l,e 2p5o9l-y2m60o.rph in intergrowth with tremolite: Clino- TRICLINIC TALC FROM GOUVERNEUR 769 EDnagneDal,i,sEAt.r.iScE.t,, (J1.89(129)6S2y)sTtehme oPfreMcianmerbarlioagny.ge6othlogeyd northwest Adirondack Mountains, .a:nJdohtanlcWdielepyosaintsdoSf othnes,BInaclm., aNt-eEwdwYaorrdks. New York. U. S. Geol. Surv. Open File Rep., 357p. E ngeAtilmo,neAro..fEBth.uelJl..m,a6an9jdo, rC1p3ea6lr8ae-gs1nt4ee1i4sGs. ,. nEonrgthewl e(s1t9A58d)irPornodgarcekssMiveoumnetatainmso, rNphewismYoarnkd. granitizaGeol Soc. Grun41e2r-,4J1.9W. . (1934) The crystal structures of talc and pyrophyllite. Z. Kristallogr., 88, Hend99r,ic2k6s4,-2S7.4B.. (1938) On the crystal structure of talc and pyrophyllite Z. Kristallogr., RRoasysn, eMr,.,J.HH. .TaankdedGa. aBnrdowDn. R(1. 9W66o)nTersic(l1in9i6c6f)oMrmicoafptaollcy.tyNpaetsu:reS,y2s1te2m, 1a3ti5c2-d1e3s5c3ri.ption RSeogsseMaS,lnceiMdineren.,ir,dcCaeeJ.ln..G(ti4iJn.f6.i(c,p1Par69tea36isop71sni-))k6..Fe4Si1cra.sientndUce.P,Sa.1u5o1lc,cWu1r9r.1e-Wn1c9ee3io.bflmenan(g1a9n6o8a)nEcxusmomluitniogntoinnitec,litnirooadmitpeh.iAbomleesr.. Stemrpellaet,ioI.nsS.Ja.nAdmGe.r.WC.erBarminSdolce.y43(1, 93640-)42A. structural study of talc and talc-tremolite Viswdainmaetnhsiaonn,sKo.f acunmd mS.inGghtoonsiete(s1.9A65m)eTr.heMeinffeercatlo. f5M0, g2+--Fe2+ substitutions 1106-1112. on the cell Zvyacgelilns, B. of pBy.raonpdhyZl.liGte. Painndsktaelrc (1949) Electronographic determination of and structural relation of these minerals the to elementary montmoril Ionite. Dokl. Acad. Sci. USSR 68, 505. Manuscript received, July 18, 1967; accepted for publication, September 25, 1967.