INDEX TO VOLUME 35Leading articles are in bold face type; notes, abstracts, and reviews are in ordi-

nary type. Only minerals for which definite data are siven are indexed.

Acmitic pyroxenes, optical proper-ties and composition of.(Sabine) 321

A d a m s , C . E . . . . . . . . . . 2 8 9Adularia, triclinic, geometry of.

(Laves) Z8SAdularia, triclinic, optics of .

(Chaisson) 279Aegirine-granulites of Glen Lui,

Braemar, Aberdeenshire.(Mcl-achlan) 322

A g r e l l , S . O . . . . . . . . . 1 0 8 0Aguilarite. 343Ahrens, L. If. and Liebenberg, W.

R. Tin and indium in mica, asdetermined spectrochemi-ca l l y . . . 571

Alaskaite, probable non-existenceo f . ( T h o m p s o n ) . . . . . . 4 5 6

Albite, high-temperature. (Tuttle,Bowen). 290

Alkali-feldspars, unusual, in centralAustralian charnockitic rocks.(Wilson) 609

Allanite from Greenwich, Mass.,lead-uranium ratio and proba-b l e a g e o f . ( M a r b l e ) . . . . . . . 8 4 5

Allanite occurrence in FranklinF'urnace quadrangle, New Jer-sey. (Mil ton, Davidson) . . . . 500

A l l e n , V . T . . . . . . 2 7 7Allophane-phosphate in epidosite

from North Carolina. (Jaffe,S h e r w o o d ) . . . . . . l 0 Z

Ammonium aphthitalite. (Fron-de l ) . . . 596

Ammonium dihydrogen phosphate,s t r u c t u r e o f . ( F r a z e r ) . . . . . . . 1 2 5

Amplifer for diferential thermalanalysis. @eck) . 508, 1090

Andradite occurrence in Franklintr'urnace Quadrangle, N. J.(Milton, Davidson). S00

A n d r e a t t a , C . . . . . . 3 3 4Annealing twins, origin of. (Mad-

d in ) . . . 126Anthophyllite, diffraction pat-

t e r n . . . 5 8 7Antimony oxides, naturally occur-

r ing . (Mason, V i ta l iano) . . . . . 286Aragonite and calcite; thermal

analysis studies on carbolates(I). (Faust) 207

Arcanite, ammonium aphthitaliteand oxammite. (Frondel) 596

Arduinite, discredited. 601"Arizonite," nature of. (Overholt,

Vaux. Rodda) ll7Arnott, R. J. X-ray diffraction data

otr some radioactive oxideminerals. 386

Arrojadite, hiihnerkobelite andgra f ton i te . @indberg) . . . . . . . 59

Asbestos, r-ray diffraction patternsof. (Beatty). 579

Asboph i te . (Syromyatn ikov) . . . . . . 333Ashcroft, Frederick N., memorial

o f . ( B a n n i s t e r ) . . . . . . . 2 5 9Assimilation (?) of micaceous schist

by d iabase. (Toml inson) . . . . . 290Axelrod, J. M. X-ray notes on

searlesite. l0l4

Bahiaite from southern Norway, in-trusive relations of. (Barth). . . 622

B a i l l y , R . J . . . . . 2 7 7B a n d y , M . C . . . . . . . . 1 3 5Bannister, F. A. Memorial of Fred-

erick N. Ashcroft. 259135, 320

Barbosa, A. L., Myers, A. T., withPecora, W. T., and Switzer,G., Golconda pegmatite,Minas Geraes,BraziL .. . . 889

Barnes, W, H. Electron microscopicexamination of synthetic tour-m a l i n e c r y s t a l s . . . . . . . . . . . . 4 O 7

Barshad, I. Effect of interlayer cat-ions on expansion of the micatype of crystal lattice. . . . . . . . 225

1095

1096 INDEX

Barth, T, F. W. Intrusive relationsof bahiaite from southern Nor-w a y . . . . . . . . . 6 2 2

Basaluminite and hydrobasalumi-nite, two new minerals fromNorthamptonshire. (Holling-worth, Bannister). . .- 320

Bates, T. F., Hildebrand, F. A. andSwineford, A. Morphology andstructure of endellite and hal-loysite. 463

B a u e r , W . H . . . . . 1 2 8Beatty, S. van D. X-ray diffraction

patterns of asbestos. 579Beck, C. W. Amplifier for differen-

tial thermal analysis. , . . .508, 1090Differential thermal analy-

sis curves of carbonate miner-a l s . . . . 9 8 5

Wiring diagram of anamplifier for differential ther-mal analysis. 1090

Berry, L. G. Pseud.omalachite andcornetite. 365

Beryl at Mt. Mica, Maine. (Hurl-b u t ) . . . 2 8 3

Berzelianite . 351Big Bend National Park, petrology

(Lonsdale, Maxwell) 286Billings, M. P. and Wh.ite, W. S.

Metamorphosed mafic dikes of'W'oodsville quadrangle, Ver-mont and New Ilampshire. . . 629

Birch, F. gimFle technique forstudy of elasticity of crystals. . 644

Birks, L. S. and Schulman, J. H.Effect of impurities on crys-talization of amorphous silicica c i d . . . . 1 0 3 5

Bond, 'W.

L, Nomographs for tri-cl inic cel l computations.,, . . .

B o r , L . . . . . . .Bornite, CusFeSa, disorder in.

( F r u e h ) . . . . . . 1 2 8 , 1 8 5Bornite from Illogan, Cornwall,

crystal structure of. (Tunell,Adams). 289

Bowen, N. L. The making of amagmatist. 651

Presentation of the Roeb-ling Medal of the Mineralogi-cal Society of America tof l e r b e r t E . M e r w i n . . . . . . . . . 2 5 5

.278, 290Bowen, O. E. with Hutton, C, O,

Occurrence of jarosite inaltered volcanic rocks of Stod-dard Mts., San BernardinoCounty, Calif... 556

Bowleyite (Rowledge, Hayton) .. 1091Bradley,

'W. F. Alternating layer

sequence of rectorite. . . .278, 590Brannock, W. W. with Switzer, G.

Composit ion of veatchite.. . . . 90Bravais, M. A. On the systems

formed by points regularly dis-tributed on a plane or in space.B o o k r e v i e w . . . . . . . 1 0 8 7

Brook, A. G. Crystal properties ofcopper (II) and nickel (II)chloride coordination com-plexes with diethylenetri-amine. 447

Bruce, Everend L,, memorial of.(Hawley). 262

Buddington, A. F. Composition andgenesis of pyroxene and garnetrelated to Adirondack anortho-site-marble contact zones... . 659

Buerger , M. J . . . .122 ,278, 290Burri , C. and Niggl i , P. Die junger

Eruptivgesteine des Mediter-ranen Orogens, Part 2. DerChemismus der postophio-litischen Eruptivgesteine.B o o k r e v i e w . , . . . . . . . 6 0 6

Cacoxenite from Hellertown, Penn-sylvania. (Gordon) 132

Calcite-aragonite, thermal analysisstudies on, (Faust) 207

Calc-silicate skarn veins in lime-stone of Lough Anure, Co.Dougal. (Pitcher) 320

Cameron, E. N., Jahns, R. H.,McNair, A. H., and Page, L.R. Internal structure of granitepegmatites. Book review... . . 330

Campbell, C. D.. . 280

2391 3 1321

INDEX

985

J Z J

284

693

r@7

Canpbell, I. and Schenk, E. T.Camptonite dikes D.earBoulder Dam, Arizona .. . .

Camptonite dikes near BoulderDam, Ariz. (Campbell,Schenk).

Carbonate minerals, differentialthermal analysis curves of.(Beck).

Carnotite and radioactive shale inMissouri. (Muilenburg, Kel-le r ) . . .

C a r r , D . R . . . . . . . .Cassiterite, spectrochemical anal-

, .^:^v r r r . . . . .

C h a i s s o n , U . . . . .Chapman, C. A. Quartz veins

formed by metamorphic difier-ertiation of aluminous schists.

Chayes, F. Supplementary chap-ters on "statistical analyses"in Structural petrology of de-formed rocks by Fairbairn.Book review.

Childrenite-eosphorite series.Gfurlbut).

Clabaugh, S. E.. . .Claisse, F. Roentgenographic

method for determining plagio-c l a s e s . . . .

Claringbull , G. F..Clausthal i te.Clinopyroxenes of Skaergaard in-

trusion, East Greenland.( M u i r ) . .

Cloos, E. Book review.Collophane in Thames gravel.

(Claringbull , El l is). . . .Cone-axis diffraction parrerns.

(Fisher) 281Conybeare, C. E. B. and Ferguson,

R. B. Metamict pitchblendefrom Goldfields, Saskatche-wan, and observations onsome ignited pitchblendes.... 401

Cookeite, optical data..280897

Cordierite in pegmatite nearMicanite, Colorado. (I{ein-r i ch) . . . 173. 1089

Cornetite. (Berry). 365Crestmore sky blue rnarble, its

linear thermal expansion andcolor. (Rosenholtz, Smith). 1049

Crocidolite, diffraction pattern .. 586Crookesite. 347Cryptomelane, crystal structure of.

(Math ieson, Wads ley) . - . . . . . 99Crystal habit modification of amino

acids and NaCl. (Fenimore,T h r a i l k i l l ) . . . . . . . . . t 2 8

Crystal optics on microscopic views,a monoclinic case. (O'Brien,Donnay). 129

Crystal properties of copper (II)and nickel (II) cbloride coordi-nation complexes with di-ethylenetriamine (Brook).... 447

Crystallographic nomenclatute, re-marks on. (Peacock). 882

Crystallographic Society ofAmer ica , p roceed ings o f . . . . . , 122

Crystallographic symmetry in re-ciprocal space and vector space(Buerger) 122

Csiklovaite (Koch, Grassel ly).. . .- 333Cuurmingtonite and hornblende

from Muuruvesi, Finland,paragenesis of, @skola).. . . . 728

Cupriferous Lewisian Para-gneiss.( H a r r y ) . . . . 1 0 8 1

Custers, J. F, H. Nature of theopal-like outer layer of coatedd i a m o n d s . . . . . . . 5 1

Cymrite. (Smith, Bannister, Hey). f 35

Dacites from Laughlin Peak, Col-fax Co., N. Mex. (Stobbe). . . . 288

Daggett, E. B. anrl Gordon, S. G.with Fahey, J. J. WherrYite' anew mineral from MarnmotlaM i n e , A r i z o n a . . . . . 9 3

Dark-field stereoscopic microscopefor min614[egis studies(Ross). 906

Davidson, N..with Milton' C. Oc-cuffelce of natrolite, andra-dite, and allanite in tr'ranklinFurnace Quadrangle' N. J.... 500

Denning, R. M. Demonstration of

671

671

898279

1082

793279

412609J J O

6091085

609

INDEX

double refraction of aragonitefor rays travelling in the neigh-borhood of an optic axis. . . . . 598

Determination of principle indicesof refraction on di-fficultly ori-ented minerals by direct meas-urement. (Rosenfeld). 902

Diamonds, coated, opal-like outerlayer of. (Custers) 51

Diamond impregnated tools forrock-s l i c ing . (Dunham) . . . . . . 609

Diamond, maximum hardness vec-tors in. (Slawson, Kohn). 131

Diamond, twinning in. (Slawson). . 193Dichroscopes for microscope stage

and ocular. (Dollar) 321Differential thermal analysis, am-

p l i f i e r f o r . ( B e c k ) . . . . . . . 5 0 8 , 1 0 9 0Differential thermal analysis

curves of carbonate minerals@eck). 985

Differential thermal analysis ofcertain phosphates. (Manly) 108

Discredited minerals 136Disorder in minerals, general as-

pects of. (Buerger) . . 278Disorder in sulfides. (Frueh) 282Dol la r , A . T . J . . . . 321Donnay, G. H. and Donnay, J.

D . H . B o o k r e v i e w . . . . . . . 1 2 9Donnay, J. D. H.. . . . . .123, 129Double refraction of aragonite for

rays traveling in neighbor-hood of an optic axis, demon-stration of. (Denning) 598

Dunham, K. C. Petrography ofnickeliferous norite of St.Stephen, New Brunswick. . . . 7r r

6091092oupt"*ii". in".r"a*", H;";."). . .

Earley, J.'W. Description and syn-thesis of selenide minerals. 337

Ehrmann, M. L. and Whitlock, H.P. The story of jade. Bookreview. 133

Einfiihrung im die Gefiigekundeder geologischen Kd'rper.(Sander) Book review. .. . . . 1085

Elasticity of crystals, sirnple tech-

nique for study of. (Birch). . . .E l l i s , S . E . . . . .Endellite and halloysite, morphol-

ogy and structure of. @ates,Ilildebrand, Swineford)

Eosphorite. (Hurlbut).Epidote, crystallography of . (Horn-

stra, Terpstra)Eskdal No. 2 boring, East York-

shire, petrology o[ evapor. i tes.(Stewart)

Eskola, P. Paragenesis of cum-ingtonite and hornblende fromMuuruvesi, Finland.

Kristalle und Gesteine.Book review.

Eucair i teEucolite from southern New Mex-

i c o . ( C l a b a u g h ) . . . . . . . . .Eudialyte and eucolite from south-

ern New Mexico. (Clabaugh).Euxenite, x-ray daIa.Evans, H. T. Jr. Uranium minerals

(VI)) Walpurgite.. . .and Frondel, C. Uranium

minerals (II)) Liebigite anduranothallite.

644609

46379+

32r

r080

728

328345

279

279396

t02 l

z J I

Fahey, J. J. Searlesite from GreenRiver formation of Wyoming. 1014

-r Daggett, E. B, and Gordon,S. G. Wherryite, a new min-eral from Mammoth Mine,Arizona. 93

-r with Pecora, W. T. Lazt't-lite-scorzalite isomorphouss e r i e s . . . . . . . 1 , 3 2 7

Fairbairn, H. W. Structural petrol-ogy of deformed rocks. Bookr e v i e w . . . . . . . 1 0 8 2

Syntheticquartzite 280,735F a l e e v , P . V . . . . . . . 3 3 3tr'aust, G. T. Thermal analysis stud-

ies on carbonates (I)) Arago-nite and calcite. 207

Book review. 332Fayalite at Rockport, Mass. (Pa-

lache). 877Fenimore, C. P.. . . 128Ferguson, R. B. Red gold from San

Antonio gold mine, Bissett,Manitoba.

with Conybeare, C. E, B.Metamict pitchblende fromGoldfi elds, Saskatchewan, andobservations on some ignitedpitchblendes

F i s h e r , D . J . . . . . .Fluoaluminates. structural classifi-

cation of. (Pabst).FluorescenL feldspar and zircon as

petrological aids. (Wilson)F o r n a s e r i , M . . . . . .Foshag, W. F. Aqueous emanation

from Paricutin volcano ....Fourier transformer, two-dimen-

s iona l . (Pep inskv) . . . . . . .Franquenite-slavikite. (Van Tas-

se l ) . . . .F r a z e r , B . C . . . . . .Frequency distribution of optical

properties of crystals. (Kirk-

401281

149

609. t . t . )

749

124

136125

patrick). 129F r i e d m a n , L . . . . . 2 8 1Frondel, C. Arcanite, ammonium

aphthitalite and oxammite. . . 596Uranium minerals (I))

Parsonite and randite. . . . . 245Uranium minerals (V))

Phosphurany l i te . . . . . 756with Evans. I{. T. Uranium

minerals (II)) Liebigite anduranothallite. 251

--r with Lindberg, M. L. Zrn-c ianrockbr idge i te . . . . . . . . . 1028

-r and Palache, C. Three newpolymorphs of zinc sulfde. . . . 29

with Prewitt-Hopkins, J.Thermal decomposition of zincsrr l f ide polymorphs... 116

. . . . . 2 8 1 . 3 2 0Frueh, A. J, Jr. Disorder in the

mineral bornite, CurFeSa . 128, 185a Q a

Gabbro-limestone contact nearCamphouse, Ardnamurchan( A g r e l l ) . . . . . . 1 0 8 0

Gallium and germanium replace-ments in synthetic feldspars,

1099

significance of. (Goldsmith). . .Galloni, E. E. Crystal structure of

f erroan zincian rhodochrosite .Garnet and p5noxene, composition

and genesis of. (Buddington). .Garnet crystals from Cairnie, Aber-

deenshire. (Stewart)Garnet, polycomponent, physical

analysis of. (Levin) .. 285Geology and economics of New

Mexico iron-ore deposits. (Kel-ley) Book review . 606

G e r a s i m o v s k y , V . I . . . . . . . . . 1 0 9 2Girault, J. P. New method for

measuring refractive indices inmicaceousminera ls . . . . . . . . 421

Golconda pegmatite, Minas Gerais,Brazil, structu5e and mineral-ogy of. (Pecora, Switzer, Bar-

G o r d o n , I . . . . . .Gordon, S. G. with Fahey, J. J.

and Daggett, E. B. Wherryite,a new mineral from MammothMine, Arizona

INDEX

282

562

6s9

1080

889282282128

Graftonite. (Lindberg).Graphite structure, problem of.

(Lukesh, Pauling)Grassel ly, J.Gruner, J. W. Attempt to arrange

silicates in the order of reac-tion energies at relatively lowtemperatures.

Guanaj uatite.

93t3259

125333

137362

Halloysite and endellite, morphol-ogy and structure of. (Bates,I l i ldebrand, Swineford).. . . . . 463

Hamburger, G. E... 123Hamilton, If. with Seaman, D. M.

Occurrence of wurtzite poly-morphs in western Pennsyl-van ia and eas tern Oh io . . . . . . +3

Harker-Kasper inequalities, deriva-tion of. (MacGillavry) 123

H a r r y , W . T . . . . . . . . . . . 3 2 1 , l O 8 1flauchecornite. (Peacock). ... . .287, 440

1100 INDEX

Hauptman, I{.. ... 123 Hydrocarbon with cinnabar inIlawley, J. E. Memorial of Everend British Columbia. (Watson) . . 457

L. Bruce. 262 Hydroxyl in minerals. (Keller,H a y t o n , J . D . . . . . . 1 0 9 1 P i c k e t t ) . . . . 2 8 4Heald, M. T. Thermal study of

potash-soda feldspars. 77 Illidromica (Andreatta) 334Heinrich" E. W. Cordierite in peg- Indium in mica, as determined

matite near Micanite, Colo- spectrochemically. (Ahrens,rado... . . .173, 1089 Liebenberg). 571

Paragenesis of rhodolite Infra-red light, microscope anddeposit, Masons Mountain, N. refractometer for. (Bailly,Car.. . . 764 Holke). 277

Book reviews. Infrared microscopy. (Perrine,. .133, 329,330, 605, 606, 607, 1082 McCrone). 130

Herzenberg, R.. . . . . 334 Ingerson, E. Water content ofH e y , M . H . . . . . . . . . . 1 3 5 p r i m i t i v e g r a n i t i c m a g m a . . . 8 0 6Iligazy, R. A. Orthoclase-albite- Book review. .... 1082

anorthite, antl the NaAlSiO4- Interlayer catioos, effect or expan-KAlSiOr-SiOz equilibrium dia- sion of mica type crystal lat-g r a m s . . . . . . . 1 0 3 9 t i c e . @ a r s h a d ) . . . . . . 2 2 5

Hildebrand, F. A. and Swineford, Internal structure of granitic peg-A. with Bates, T. F. Morphol- matites. (Cameron, Jahns,ogy and structure of endellite McNair, Page) Book review.. 330and halloysite 463 Introduction to crystallography.

283 (Ph i l l i ps ) Bookrev iew. . . . . . . 332Holke, K. A... . . . 277 lrwin distr ict of Colorado, geologyH o l l i n g w o r t h , S . E . . . 3 2 0 o f . ( S o c o l o w ) . . . . . . . 2 8 8Holmes, A, Petrogenesis of ka- Isakov, E. N... 334

tung i te and i ts assoc ia tes . . . . 772 Iskyu l , E . V . . . . . . 333- Age of uraninite from peg- Isotopic analysis of lead. (Leland,

matite near Singar, Gaya Dis- Nier). . 19trict, India. 19

Holser, W. T. Book review. . . 328 Jadeite problem. (Yoder). 291Ifornfelses from Saxony and the Jaffe, If. W. and Sherwood, A. M.

problem of metamorphic facies Phosphate-allophane in epido-(Nrccli). 867 site from North Carolina.. . . . 102

H o r n s t r a , J . . . . . . 3 2 1I{iihnerkobelite. (Lindberg)... 59 Jahns, R. H., McNair, A. H. andHummel, F. A. Synthesis of uvaro- Page, L. R. with Cameron, E.

vite... 324 N. Internal structure ofIlurlbut, C. S., Jr. Chiltlrenite- granitic pegmatites. Review. . 330

eosphorite series . 793 James, R. W. Optical principles ofJohannite 531 the diffraction of r-rays. Book

2 8 3 r e v i e w . . . . 1 0 8 6Hutton, C, O. and Bowen, O. E. Jarosite occurrerce in altered vol-

Occurrence of jarosite in al- canic rocks of Stoddard Mt.,tered volcanic rocks of Stod- San Bernardino Co,, Calil.dard Mt., San Bernardino Co. (Ifutton, Bowen). 556Cal'.. ' 556 Johannite. (Hurlbut). 531

Hydrobasa lumin i te . . . : . . . . . . . . . 320 Jungen Erupt ivges te ine des Med i -

284

terranen Orogens. Part 2. DerChemismus der postophioliti-schen Erupt ivgesteine. (Burr i ,Niggli) Book review. . . 606

Karle, J.Katungite and its associates, pet-

rogenesisof. ( I{olmes) . . . 772Keevil, N. B. Radioactivity and

mineral deposits. 816Keller, W. D. with Muilenburg, G.

A. Carnotite and radioactiveshale in Missouri. 323

284Kelley, V. C. Geology and eco-

nomics of New Nlexico iron-ore deposits. Book review. . . . 606

Kinso lv ing , M. R. . . . . . . 127K i r k p a t r i c k , A . F . . . . . . . 1 2 9Klockmannite. . . 360Knopf, A. Marysville grauodiorite

stock, Montana... . . 834Koch, S.. 333K o h n , J . A . . . . . . . 1 2 5 , r 3 1Kraus, E. H. Book review. 133K r e n n e r , ' J . . . . . . . 3 3 +Krennerite, atomic arrangement

ard chemical composition(Tunell, Murata). 959

Kristalle und Gesteine. (Eskola)Book review. 328

Kronberg, M. L.. . 126K u l p , J . L . . . . . . . . 2 8 4 , 1 0 8 1

Larsen, E. S. Jr., published worksbv. €itz) 954

Lattice rotations permitted byshort displacements of latticepoints. (Kronberg, Wilson) . . 126

L a v e s , F . . . . . . 1 2 7 , 2 8 5Laniite-scorzalite isomorphous se-

r ies. (Pecora, Fahey). . . . . . . .1, 327Leland, W. T. and Nier, A. O.

Iso top ic ana lys is o f lead . . . . . . 19Leucite-SiO4-FeO system. (Roed-

der). . . 288Leucoxeneprob lem. (A l len) . . . . 277Leverenz, H. W. Introduction to

luminescence of solids, Book

revlew. . .

Levin, S. B.. .Liebenberg, W. R with Ahrens, L,

If. Tin and indium in mica. asdetermined spectrochemi-cally. . . .

Liebigite and uranothallite. Ura-nium minerals (II). (Evans,F r o n d e l ) . . . .

Lindberg, M. L. Arrojadite, hiih-nerkobelite and graftonite. . . .

-t and Frondel, C. Zincianrockbridgeite . . .

Llal laguali te. (Bandy). . .Lomonosovite. (Cerasimovsky). . .Long, H. M. . . . .Lonsdale, J. T.. . .Lossenite, louderbackite, zepharo-

vichite, peganite and sphae-rite, new data on. (Pearl). .

Louderbackite. new data on. . . . . .Lovering, T. S. Rock alteration as

a guide to ore-East TinticDistrict, Utah, Book review. .

L u k e s h , J . S . . . .Luminescence of solids. (Leverenz)

Book review.L y n d , L . E . . . . . . . . .

MacGil lavry, C. H.. . . I23, 127M a d d i n , R . . . . . . 1 2 6Mafc dikes, metamorphosed,

Woodsville Quadrangle, Ver-mont and New Hampshire.@illings, White). 629

Magmatist, making of a. @owen). 651M a k a s , A . S . . . . . . . . . . 1 3 0Malachite, unit cell of. (Ramsdell,

W o l f e ) . . . . . l l 9Manganese minerals, hydrated,

synthesis of (IlV'adsley). . . . 485Manganese oxide minerals, Lhermal

study of. (Kulp, Perfetti). . . . 1081Manganotantalite, crystallography,

tc-ray, and spectrochemicalandlysis. 899

Manly, R. L., Jr. Differentialthermal analysis of certainp h o s p h a t e s . . . . . . . . 1 0 8

Marble, J. P. Lead-uranium ratio

L Z.t

TNDEX 1101

1087285

25r

59

1028I J . )

1092t32286

10551055

329125

r087r27

1lo2

and possible geologic age ofallanite from Greenwich,Mass . .

Marysville graaodiorite stock,Montana. (Knopf).

Maslenitzky, I . N.. . .M a s o n , 8 . . . . . .Mathieson, A. McL. and'Wadsley,

A. D. Crystal skucture ofcryptomelane

Maxwel l , R . A . . .McAndrew, J. with Peacock, M. A.

Parkerite and shandite, andcrystal structure of NigPbzSz.

McConnell, D, Crystal chemistry ofmontmor i l lon i te . . . . .

McCrone, W. C. .Mclachlan, G. R...McNair, A. H., Page, L. R. with

Cameron, E. N. and Jahns, R.H. Internal structure of gra-nit ic pegmatites. Review.. . . .

Measurement of geologic timb, re-port of Committee on. (Re-view). .

M e r k e r , L . . . . . .Merwin, H. E. Acceptance of Roeb-

ling Medal of the Mineralogi-ca l Soc ie ty o f Amer ica . . . . . .

Mica type of crystal lattice, efrect ofinterlayer cations on expansionof. (Barshad).

Micaceous minerals, new methodfor measuring refractive in-dices in. (Girault).

Microcline, twinning in. (Laves). . .Microlite, physical properties and

spectrochemical analysis. . . . .Microlite (ignited), r-ray data.. . . .Midgley, H. G.. .Milton, C. and Davidson, N. Oc-

currence of natrolite, andra-dite, and allanite in FranklinFurnace quadrangle, N. J.. . . .

Mineral occurrence in western

Melonite in Boulder Co., Col.(Wahlstrom) .. . .290.948

List of Correspondents, fellowsand members 295

New award. l2 lNominations of officers for 1951 . 614Proceedings of the 30th annual

meeting at El Paso, Texas . .. 268Roebling Medal-Presentation

a n d a c c e p t a n c e . . . . . . . . . . 2 5 5 , 2 5 8Mineralogical Society (London). . .

. . . . . 3 2 0 , 6 0 9 , 1 0 8 0l\{ineralogische Tabellen. (Strunz)

Book review 608Miserite from Arkansas: a renam-

ing of natroxonotlite. (Schal-l e r ) . . . . 9 1 1

Montgomery, A. Geochemistry oftantalum in Ilarding pegma-tite, Taos Co., New Mexico . . 853

Montesite. (Herzenberg) 334Montmorilloaite, crystal chemistry

of. (McConnell) 166M o o r e , C . H . . . . . . . . . . . 1 2 7 , 1 2 8Mordenite from Tintic, Utah, and

the discredited mineral arduin-i t e . ( S t r i n g h a m ) . . . . . . . 6 0 1

Morganite, optical propert ies. . . . . 897Mrose, M. E. Uranium minerals

([I); Sal6eite from Schnee-berg, Saxony. 525

Muilenburg, G. A. and Keller, W.D. Carnotite and radioactiveshale in Missouri 323

M u i r , I . D . . . . . . 6 0 9Mullite, flame fusion synthesis of

(Bauer , Gordon, Moore) . . . . . 128Murata, K. J. with Tunell, G.

Atomic arrangement andchemical composition of kren-nerite. . 959

M u r d o c h , J . . . . . . 2 8 7Myers, A. T. with Pecora, W. T.,

Switzer, G, and Barbosa, A. L.Golconda pegmatite, MinasGerais, Brazil. . 889

Nababeep Near 'West

turgste!mine, S. Africa. (Siihnge). . . . 931

Natrolite, andradite and allanite,ocfl[rence in Franklin tr'ur-nace quadrangle, New Jersey.(Milton, Davidson). 500

INDEX

845

834333286

99286

425

r66130322

330

607

127

258

225

4211 2 7

900391

1080

500287

Canada. (Thompson) 451Mineralogical Society of America:

Const i tu t ionand By- Iaws. . . . . . 6 l l

Natroxonotlite, renaming of.(Schaller). gll

Naumannite.. . . 340Nepheline-carnegieite transforma-

t ion, effect of potassium on.( W a s h k e n , B u e r g e r ) . . . 2 9 0

Nesquehonite, twinning in. (Kin-solving, MacGillavry, pe-pinsky) 127

New mineral names.. 135, 333, 1091NisPb:Sz, crystal structure of.. . . . 425Nickel-copper-gold mineralogy at

Mackinaw Mine, SnohomishCo., Washington. (Milton). . . 297

Nickeliferous norite of St. Stephen,New Brunswick, petrographyof. (Drrnham). 711

Nier, A. O. with Leland, W. T. Iso-topic analysis of lead. . . . lg

Niggli, P. Some hornfelses fromSaxony and the problem ofmetamorphic facies.. 967

Probleme der Naturwis-senschaf ten . Bookrev iew. . . . 605

and Burri, C. Die jungenEruptivgesteine des Mediter-ranen Orogens. (Part 2) DerChemismus der postophio-litischen Eruptivgesteine.Book review 606

Nontronite at Bingham, Utah.(Stringham, Taylor) . ...289, 1060

O'Brien, W. A.. . 12gOpal-like outer layer of coated

diamond, nature of. (Custers) 51Optical principles of the diffraction

of r-rays. (James). Book re-v te rs . . . 10g6

Orthoclase-albite-anorthite, atrdthe NaAlSiOrKAlSiOr-SiOzequilibrium diagrams (Hig_azy) . . . 1039

Overholt, J. L., Vaux, G. andRodda, J. L. Nature of ,,ari-

zonite," lliOxammite. (Frondel) 596

Pabst, A. Structural classificatiouof f luoaluminates... . I4g

Book review. 609

1103

Page, L. R. with Cameron, E. N.,Jahns, R. H. and McNair,A. H. Internal structure ofgranitic pegmatites. Review. . 330

Palache, C. Fayalite at Rockport,Mass.. . 877

with Frondel, C. Three newpolymorphs of zinc sulfde. . . 29

Paragearksutite. (Smolyaninov,Isakov) 334

Paraguana jua t i te . . . . 362Paratacamite and related copper

chlorides. (Frondel) 320Paricutin volcano, aqueous emana-

t i o n f r o m . ( F o s h a g ) . . . . . . . . . 7 4 9Parkerite and shandite, and crystal

structure of NLPbzS:. (Pea-cock, McArdrew)... 425

Parsonite and randite. Uraniumminera ls ( I ) . ( f ' ronde l ) . . . . . . 245

Patifloite. (Bandy) 135P a u l i n g , L . . . . . 1 2 5Peacock, M. A. Hauchecorfite.287, 440

Remarks on crystallo-graphicnomenclature. ... 882

and McAndrew, J. Parker-ite and shandite, and crystalstructure of NLPb2S2. 425

Pearl, R, M. New data onlossenite,louderbackite, zepharovichite,peganite and sphaerite .. . . . 1055

Pecora, 'W. T. and Fahey, J. J.

Lazulite-scorzalite isomor-p h o u s s e r i e s . . . . . . . . 1 , 3 2 7

Switzer, G., Barbosa, A. L.and Myers, A. T. Structureand mineralogy of Golcondapegmatite, Minas Gerais,B r a z i l . . . . . i . . . . . . . . 8 8 9

Peganite. 1055Penroseite .. 360P e p i n s k y , R . . . . . l 2 + , 1 2 7 , 1 3 2P e r f e t t i , N . . . . . . . . . . . . . 1 0 8 1Perovskite from California. (Mur-

doch) . 287P e r r i n e , E . L . . . . . 1 3 0Petrographic microscope, inexpen-

s i v e . ( W i n c h e l l ) . . . . . . 1 3 0Phil l ips, F. C. Introducrion to

crystallography. Book review. 332Phosphate-allophane in epidosite

INDEX

1104

from North Carolina. (Jafie,Sherwood).

Phosphates, differential thermalanalysis of. (Manly)

Phosphuranylite. @rondel).. . .Photoelastic constants of crystals

of NHTHzPO, and KHzPOn.(West, Makas)

P i c k e t t , t r . E . . . . . . .Pisanite from Parys mountain,

102

108/ . )o

130284

Anglesey. (Bor). . 321Pitchblende, metamict, from Gold-

fields, Saskatchewan, and ob-servations on some ignitedpitchblendes. (Conybeare,( F e r g u s o n ) . . . . . . . . . 4 0 1

P i t c h e r , W . S . . . . . 3 2 0Plagioclase, olivine and orthopy-

roxene series, correlation ofphysical properties and chemi-cal composition in. (Polder-v a a r t ) . . . . . . . . 1 0 6 7

Plagioclases, roentgenographicmethod for determining,(Claisse) 412

Poldervaart, A. Correlation ofphysical properties and chemi-cal composition in plagioclase,olivine and orthopyroxene se-r ies . . . . 1067

Portlandite, natural occurrence of . 614Potash-soda feldspars, thermal

studies of. (Ileald). 77Prewitt-Hopkins, J. and Frondel,

C. Thermal decomposition ofzinc sulfide polymorphs 116

Probleme der Naturwissenschaf-ten. (Niggli) Book review. . 605

Prospector's manuals for radioac-tive mineral deposits. (Spence,Senftle); (Geol. Survey ofGreat Britain); (U. S. AtomicEnergy Comm. and U.S.G.S.). 133

Protein crystals, Patterson-Harkermaps of. (Wrinch) 124

Pseudomalachite and cornetite.(Berry). 365

Pulszkyite. (Krenner). 334P5norene and garnet, composition

and genesis of, related to

Adirondack anorthosite-mar-ble contact zones. (Budding-t o n ) . . . 6 5 9

Pyrrhotine pseudomorphs after py-rite in Ballachulish slates.(Hermann) . . 1081

Quartz veins formed by meta-morphic difrerentiation ofaluminous schists. (Chap-man). . 693

Qrafizite, synthetic. (Fair-b a i r n ) . . . . . . . . . . 2 8 0 , 7 3 5

INDEX

Rabbitt, J. C. "The professortt.. .Radioactive oxide minerals, r-ray

diffraction data on, (Arnott). .Radioactivity and mineral deposits.

(Keevil). . .Ramsdell, L. S. and Wolfe, C. W.

Unit cell of malachite.. . .

619

386

8 1 6

r19t z J

B o o k r e v i e w . . . . . . 1 0 8 7Randite and parsonite. Uranium

minerals (I) (Frondel). . . . . . 245Rectorite, alternating layer se-

quence of. (Bradley). . . . . . 278, 590Red gold from San Antonio gold

mine, Bissett, Manitoba. (Fer-guson). 459

Red radioactive zones north ofGoldfi elds. (Conybeare, Camp-bell). . . 280

Renierite. (Vaes). . 136Residual glass of Kap Daussy

tholeiite dyke, East Green-land, chemical compositionand physical properties of.(V incent ) . . . . 320

Rheomorphic breccias. (Good-speed). 282

Rhodochrosite, ferroan zincian,s t ruc tu re o f . (Ga l lon i ) . . . . . . . 562

F.hodolite deposit, Masons Moun-tain, N. Car., paragenesis of.(Ileinrich) 76+

Rock alteration as a guide to ore-East Tintic District, Utah.(Lovering) Book review... . . 329

INDEX 1105

Rockbridgeite, zincian. @indberg,F r o n d e l ) . . . . . . . 1 0 2 8

Rock-magma and rock-species.( S h a n d ) . . . . . 9 2 2

Rodda, J. L. with Overholt, J. L.and Vaux, G. The nature of" a r i z o n i t e . " . . . . . . . . . t l 7

Roebling Medal of the Mineralogi-cal Society of America) Pres-entation by N. L. Bowen.. . . . 255Acceptance by II. E, Merwin. 258

R o e d d e r , E . . . . . . . . . 2 8 8Rosenfeld, J. L. Determination of

principal indices of refractionon difrcultly oriented mineralsby direct measurement. . 902

Rosenholtz, J. L. and Smith, D. T.Crestmore sky blue marble,its lineral thermal expansiona n d c o l o r . . . . . . . . . . 1 0 + 9

Ross, C. S. Dark-field stereoscopicmicroscope for mineralogicstudies. 906

R o w l e d g e , H . P . . . . . . . . . 1 0 9 1Rutile, crystals, flame fusion

growth and structure of.(Moore , Merker , Lynd) . . . . . 127

Sabine, P. A.. . 321Saleite from Schneeberg, Saxony.

(Mrose). 525Sander, B. Einfiihrung im die Ge-

fiigekunde der geologischenKdrper . Book rev iew. . . . . 1085

Schaller, W. T. Miserite from Ar-kansas: a retraming of natrox-onotlite. 911

Schenk, E. T. with Campbell, I.Camptonite dikes nearBoulderpam, Arizona... . 671

Schulman, J. H. with Birks, L. S.Effect of impurities on crystal-ization of amorphous silicica c i d . . . . . . . . . 1 0 3 5

Scorzalite-lazulite isomorphous se-ries. (Pecora, Fahey). .. . . . . .1, 327

Seaman, D. M. and Hamilton, H.Occurrence of polymorphouswurtzite in western Pennsyl-van ia and eas tern Oh io . . . . . . 43

Searlesite from Green River for-mation of Wyoming. (Fahey);with r-ray notes. (Axelrod).,. 1014

Selenide minerals, description andsytrthesis of. @arley). 337

Senftle, F. N. and Spence, H. S.Prospector's guide for ura-nium and thorium minerals inCanada. Review. 133

Serpentine mineral from KennackCove, Lizard. (Midgley). . . 1080

Shand, S. J. Rock-magma androck-species. 922

Shandite. @eacock, McAndrew).. 425Sherwood, A. M. with Jaffe, H. VI.

Phosphate-allophane in epido-site from North Carol ina... . . 102

Si/Al substitution in some silicatelattices. (Harry) 321

SiC, type 10-H, crystal structureo f . (Ramsde l l , Kohn) . . . . . 125

Silicates, order of reaction energiesat relatively low temperafures.(Gruner). 137

Silicic acid, amorphous, effect ofimFurities on crystallization of(Birks, Schulman). . . . . . . 1035

Silver Lake talc area, San Bernar-dino Co., Calif., geology of.(Wright). 291

Slawsonn C. B. Twinning in thediamond. 193

Smith, D. T. with Rosenholtz, J.L.Crestmore sky blue marble,its linear thermal expansionand color. . . . 1049

S m i t h , W . C . . . . . . 1 3 5S m o l y a n i n o v , N . A . . . . . . 3 3 4Soco low, A . A . . . . . . 288Siihnge, P. G. Nababeep Near

Westtungsten mine, S. Africa. 931Spear, A. I32Specific gravity balance. (Walton). 609Spence, H. S. and Senftle, F. N.

Prospector's guide foruranium and thorium miner-als in Canada. (Review) .. . . 133

Spessart i te.. . . . . . 896S p h a e r i t e . . . . . . . 1 0 5 5

1 3 1

1106

Stannopalladinite. (Ntlaslenitzky,Faleev, Iskyul) .

S t e w a r t , F . H . . . . . .S t o b b e , H . . . . . .Story of Jade. (Whitlock, Ehr-

mann) Book review.Stringham, B. Mordenite fro,n

Tintic, Utah, and the dis-credited mineral arduinite. .

and Taylor, A. Nontronitea t B i n g h a m , U t a h . . . . . . . 2 8 9 ,

Structural ;,;;i;*u .i a"r",."arocks. (Fairbairn); with sup-plementary chapters on sta-tistical analysis. (Chayes)Book review.

Structure factors, phases andmagnitudes of. (Karle, Haupt-man ) . .

Strunz, H. Mineralogische Tabel-l e n . B o o k r e v i e w . . . . .

Sulfides, disorder in. (Frueh). . . .Surface area of deep sea sediments.

( K u l p , C a r r ) . . . . .Swineford, A. with Bates, T. F.

and Hildebrand, F. A. Mor-phology and structure ofendellite and halloysite. . . . . .

Switzer, G. and Brannock, W. W.Composition of veatchite. . . . .

-, Barbosa, A. L., Myers, A. T"with Fecora, W. T, Golcondapegmatite, Minas Gerais,Brazil. .

Sy romya tn i kov , F . V . . . .System formed by points regularly

distributed on a plane or inspace. (Bravais) Book review.

System NaAlSisOrKAlSiaO8-HrO(Bowen, Tut t le)

System NazO-SiOrALOs-HzO.(Fr iedman)

nontronite at Bingham,U t a h . . . . . 2 8 9 . 1 0 6 0

Telkes, M. Thermoelectric powerand electrical resistivity ofminerals. 536

Temperature-pressure-concentra-tion diagram for binary sys-tems in which the only crystal-line phases are the pure com-ponents. (Tunell). 321

T e r p s t r a , P . . . . . . 3 2 1

"The professor." (Rabbitt) . . . . . 619Thermoelectric power and electri-

cal resistivity of minerals(Telkes). 536

Thompson, R. M. Mineral occur-rences in western Canada. . . . 451

Probable non-existence ofalaskaite. 456

Thorianite. *-ray data. 388T h r a i l k i l l , A . . . . . . 1 2 8Tiemannite. 358Tin and indium in mica, as deter-

minsd spectrochemically.(Ahrens, Liebenberg). 571

Tinguaite dikes, orbicular, nearBryant, Saline Co., Ark.

(Hildebrand) 283Tokody, L . . . . . 333Tomlinson, W. H. . 290Tourmaline crystals, synthetic,

electron microscope examina-tion of. (Barnes). 407

Triclinic cell cornputations, nomo-graphs for. (Bond). . . 239

Triclinic crystals, electrical evi-dence of class of. (Bond). . . . . 131

Triperiodic functions, one-dimen-sional representation of. (Don-n a y , H a m b u r g e r ) . . . . 1 2 3

Tunell, G. Temperature-pressure-concentration diagram for bi-nary systems in wbich onlycrystalline phases are the purec o m p o n e n t s . . . . . . . . . 9 4 1

--, and Murata, K. J. Atomicarrangement and chemicalcomposition of krennerite. . . .

INDEX

J J J

1080288

133

601

1060289

463

90

1082

r23

608282

284

889333

1087

278

28rSystem NazO-SiOrHzO, liquid im-

miscibi l i ty in. (Friedman)... . 281

Tantalum in Ifarding pegmatite,Taos Co., N. Mex,, geochem-is t ryo f , (Montgornery ) . . . . . . 853

Taylor, A. with Stringham, B.

959289

T u t t l e , O . F . . . . . . . . . . . . . . . 2 7 8 , 2 9 0

INDEX tr07

Umangite. 354 Wavellite from Llallagua, Bolivia.Uraninite, x-ray data. 388 (Gordon) . . . . . . 132U r a n i u m m i n e r a l s ( I ) P a r s o n i t e W e s t , C . D . . . . . . . . . . . . . 1 3 0

and randite. (Frondel). . . . . . . 245 Wherryite, new mineral from(II) Liebigite and uranothallite. Mammoth Mine, Arizora.

(Evans, Frondel). 251 (tr'ahey, Daggett, Gordon)... . 93(III) Sal6eite from Schneeberg, White,

'W. S. with Billings, M. P.

Saxony. (Mrose). . . . . . 525 Metamorphosed mafic dikes of(fV) Johannite. (Ilurlbut).. . . . 531 the Woodsville quadrangle,(V) Phosphuranylite. (Frondel). 756 Vermont and New Harnpshire 629(VI) Walpurgite. @vans). . . . . . 1021 Whit lock, H. P. and Ehrmann, M.

Uranium, mineralogy of. (Frondel). 281 L. The story of jade. Book re-Uraninite from pegmatite near view .. 133

Singar, Gaya Distr ict, India, Wilson, A. F... . . . . 609, 610a g e o f . ( H o l m e s ) . . . . . . . . . . . 1 9 W i l s o n , F . H . . . 1 2 6

Uranothallite and liebigite. (Evans, Winchell, A. N. . t32Fronde l ) . 251 Winche l l , H . . . . . 130

Uvarovite, synthesis of. (Hummel). 324 Wiring diagram of an amplifier fordifferential thermal analysis

V a e s , J . F . . . . 1 3 6 ( B e c k ) . . . . . . 1 0 9 0Van Tassel, R... . . . 136 Wolfe, C. W. with Ramsdell , L. S.Vaux, G. and Rodda, J. L. with Unit cell of malachite . . 119

Overholt, J. L. The nature of Wright, L. A. 291" a r i z o n i t e . " . . . . . . . . . 1 1 7 W r i n c h , D . . . . . . . . 1 2 4

Veatchite, composition of. (Switzer, Wurtzite, polymorphous, in west-Brannock). . . . . . . 90 ern Pennsylvania and easterl

Vincent, E. A.. . 320 Ohio, occurrence of. (Sea-Vital iano, C. J.. . . 286 man, I{amilton).. . . . . 43

'Wadsley, A. D. Synthesis of some X-ray diffraction tube, demount-

hydrated manganese miner- able, and power source. (Long,a l s . . . . 4 8 5 S p e a r , P e p i n s k y ) . . . . 1 3 2

with Mathieson, A. McL.Crystal structure of crypto- Yoder, H. S.J.... 291melane. 99 Yttrium and other minor elements'ffahlsf1s111,

E. E. Melonite in in garnet group, role of.Boulder Co., Colorado. . . .290,948 (Jatre). 284

WalkerMinera log ica l C lub . . . . . . 461Walton,J.. . . 609 Zepharovichite . . 1055Washken, E.. . . . . 290 Zincfauserite. (Tokody). 333Water content of primitive granitic Zinc sulfide polymorphs, thermal

magma, (Ingerson). 806 decomposition of. (Prewitt-Watson, K. DeP. Hydrocarbon Hopkins, Frondel) 116

with cinnabar in British Co- Zil'c sulfide, three new poly-lumbia. 457 mo4,hs of. @rondel, Palache). 29