Qualitative Spectrographic Analysis of Zinc Concentrates

Citation preview

QUALITATIVE SFECTRO08APHIC ABALXSIS OP ZIHC CONCENTRATES

• mg By Bussell Charles Hslsoia

ummw cmmAM schoolof u m m GOLtoh&t COLORADO

ProQuest Number: 10781400

All rights reserved INFORMATION TO ALL USERS The q u a lity of this re p ro d u c tio n is d e p e n d e n t u p o n the q u a lity of the co p y su b m itte d . In the unlikely e v e n t that the a u th o r did not send a c o m p le te m a n u scrip t and there are missing p a g e s, these will be n o te d . Also, if m a te ria l had to be re m o v e d , a n o te will in d ic a te the d e le tio n .

uest P roQ uest 10781400 Published by ProQuest LLC(2018). C o p y rig h t of the Dissertation is held by the A uthor. All rights reserved. This work is p ro te cte d a g a in s t u n a u th o rize d co p yin g under Title 17, United States C o d e M icroform Edition © ProQuest LLC. ProQuest LLC. 789 East Eisenhower Parkway P.O. Box 1346 Ann Arbor, Ml 4 8 1 0 6 - 1346

3309

A th»als aubatlttod to tba PftcuXty and tbo Board of Trust*** of tfco Colorado Sohool of WLnos la partial ful« fillsant of tbo roquiroiMnts for tha dogroa of Maatar of soloooo* Slgnod Bosaall Chari** Holson CJ1 CO CO

C.j CD.

Approvodi

Qoldon, Colorado Da to jdrvAsuu

lLt

1980

The author wishes to m sprees hie sincere appreciation to all these who assisted in the coronation of this thesis. It Is particularly desired to thank the following persenst 'Professors C laA B, Carpenter and Bobert T* Phelps, of the Metallurgy Departasmt, Colorado School of Mines* for their helpful criticisms and suggestion* and for their aid In obtaining samples* 411 tbs companies she sere kind enou^i to supply asaples, and especially the American Smelting and Hsflnlng Company* of Amarillo, Texas, she supplied half of the samples that sere analysed* Professor B* 0* Fisher, of the English Department, Colorado School of Mines, for his assistance in editing this thesis. Ths Library Staff, of the Colorado School of Mines Library, for their assistance in obtaining reference material* Lawrence J* Ohockie, graduate student of the Colorado School of Mines, for the photographs used in this thesis*

§ * # « * » • *

* * * »* ♦ * * * * * * * * * *

mi Wm&pmmt

MmtiU&m Determination

X

♦ * *« + « * * # * # * • * * * *.« *« « » • # * » « •

BitoXttt of imliton

*.# # • * * * # «

4

$$m AaoJltiw isspwx&ft&fHi Skatoh of Eloetrodaa Uood

S

*

4

9 *

#

• *# ♦ * » « •«

. . . . . . . . . . . .

Haaulta

*

t 6 0

Out lino of H#eonw»nd»4 Procedural

. . . . . . . . . . .

18

. . . . . . . . . . . . . . .

30

Analysaa of Sink Conoonti^to# . . . . . . . . . . . . .

33

Analysis of Blank Carbon Electrodes . . . . . . . . . .

70

Conoluslona . . . . . . . . . . . . . . . . . . . . . .

71

Bibliography

79

Ll*t of Satnploo Analyaad

. . . . . . . . . . . . . . . . . . . . .

preposB This thesis was undertaken to determine just sfoat el#* monts one might eatpeei to find associated with alnc concen­ trates*

The work was concerned purely with analysis from a

qualitative standpoint without regard to the concentration of the elements prasent«

In all, forty-six samples ware

analysed, consisting of forty-one concentrates* two calcines* and three aina orea*

the samples were obtained from aa many

different legations at possible in order to give aa complete a coverage of the Hiited States as poeaihle*

Samples were

obtained from Hew York* Colorado* Idaho* Washington, Trail* B* C.j Arisona* Utah* Montana* Hew Mexico | Illinois $ Virginia* Missouri* Kansas* Tennessee* and Wisconsin*

Applied

Research

Laboratories

Comparator-Densitometer 3,

Baird

Associates

Three

Meter

Grating

Spectrograph

2.

ffur first in**atigstIon tobe wiiforttkmi in the analysis'''

v*L \

of sine concentrates was to determine which typo of-photo* graphic emulsion was boat suited to oualltatiw* analysis* Emiaions S3t n*0t Spectral Anal?wls 1* ant ipeetral ■Anal* $wia f were studied* as thej are four of the moderately fast emulsions with good contrast#

the finegar Sill Sine $eiEg*aitff» flotation concentrate was used throughout for ell pralimlnar^ tores ligations # For the emulsion daiemination a ten milligram eawple was weired out and was found to fill approximately one-half of the crater of a. 3/16~inch carbon electrode* Spectroscopic carbon electrodes were used* the anode being S/l§*lneh In diameter and 2 inches long* Alls Hie cathode was 3/§**liieh in. didae* ter and 2 inches long# In order to use mlmm instead of weight measurements* and thereby speed up operations* all electrodes were checked to see that the craters mm drilled

to the same depth* the cathode electrode was sharpened to a. point In a pencil, sharpener In order to decrease the wander*

ing of the arc* the emulsions mm tested In ranges 1 ($$£Q*MO0 A) and 1 :,SECTi£ON OP ELECTRODES

1/8"

l/8f

2" 2"

w

-£3/32" 1/8"

T gt>

y ^)3/l6p.

Soale: 2" * 1"

Conventional Type Electrode

Special Type Electrode

to th# Ha®lei* method the jmwdsred sample is placed b#* tween the carbon center post and th# carbon sleeve, and th# sample Is usually m i » d with either aawonliiai florid# or charred sucrose*

fh# principle behind th# Haslsr High Stream**

tog Arc Technique is as followat

'

Whan to# are Is struck th# hast generated earn### the carrier to produce a large relume of gas, which to blowing out of the ©rifle# carries th# powdered"sample up tote th# are* to four seconds of arcing at ton amps from S6»» 100 mllli-* grams of sample can to blown throuMi th# are, th© tiiit amount depending on the carrier used* Tto totensity of such an are Is several times greater fehap tost of to# ordinary are so that a single four second exposure suffices to produce a spectre* gram of sufficient density to do toot minimum amounts of all elements do toetable* Sine# each sample is blown into to# are to. a maimer oomplstoXy tode** pendent of the vapor pressure of its constituents, th# fractional distillation effects of to# m m ■ usual chargea are avoided*®^

velocity for spectrochemistry* 51* » , 140*045,* Feb* 1941*

Jour* Opt* Soe> Aaer#, vol*

to the Sew Jersey ^to# Oompany1# Research laboratory It was found that a uniform transfer of the simple from the electrode to the arc took place in about ao seconds using toe Hosier tochnl%ue*

to#- spectra obtained

m m m m free

of background* and to# exposure time was only one•tenth as long as with the previous arcing method.3 r"""^'Stsa^n I""8-*T:W't,~ tod* ffng* Chem* (Anal* Bd*)f vol* 16, pp* 676~S80t Bov* 16, 1944* ■ Ammonium chloride mid charred sucrose 'were th# additives, or carriers, tested to compare electrodes In. the Ugh# of ARTHUR LAKES LIBRARY COLORADO SCHOOL OF MINE GOLDEN, CO 80401

previous

Lithium carbonate, and sodium chloride were

also totted to study their buffer action* •the sodium chloride diluent m e selected as a buffer because of the presence of varying amounts of other constituents in the concentrates, which, like Had, are known to tower the are temperature and disturb the uniform dependence of intensity on oonocntr&tion from sample to sample* It also creates an are that greatly enhances the intensity of several rare-element lines to a point where their accurate measurement is possible,, especially those of gallium and indium* However, laCi creates less favorable conditions for determining lowest concentrations of cadmium, antimony, mercury, and perhaps bismuth*114

nation of minor element* in sine sulfide Orest Tech* Pub* 1866fPp* 22, April 1945*

Metals Tech*,

Powdered graphite was not tested because it was not ©re­ plicable to this particular speotrogr&phio technique*®

The additives were mixed with the sine concentrates in the ratio of 1*1 by volume*

The craters of both types of

electrodes were filled to equal volumes, althou^. in toe mn sine eoneontrate #1 tm m Sumii County# Iftali* Amariean Smelting sad Refining Company* Amarillo* Texas* • sine concentrete from Summit Counter* Utah*

41*

Resurrection Mining Company* iteedrllle# Colorado *» sine ore#

4&*

Cteivoraol ibqplor&tios* Mining Ceapmy*. Jofforaea Gify* Tennessee • sine ore*

43*

lew Jersey Mine Company* Gilman* Colorado -

3261.1; 3403.8; 3466,2; 3610*6; 4799,9,

Titanium!-

3372,8;

3361

,2 ; (?)

Silver;-

3380.7; 3382,9.

Hlokelt-

3414.8) 3493.0 (?)

Cobaltt-

3463,6} 3406,1; (?)

aereuryi- 2636,6; 4368,6 (?) Chromlumi- 4864.4; 4274,8; 4289,7.

Simple #St SnjUUtvSB yilyii-ng Company qxwmm w &jLJj&0 Montana JnlifeMttML '^6. ‘ «Ut

Tl

Mm

M A I *

3434,8; 3495.0 (7)

Cobalt«*

3453.8; 3405,1 {?$

Vanadium.* Sodium *

3185,4; 3184*0; 5185.4; 4379,2.

8039,4; 3256.1; 4511.5.

Chromium* 4254,4; 4274.8; 4289,7. Coluiablum* 4058.9,

-loss.ij

SHUULVflUl Mining Company Silver King, Idaho Xront- Throughout apeetrum, Areentoi* 8349.8; 8830,6) 2780,8. Silicon!* 2513*1; 2623,5; 2881,3. Hanganeeet- 2876.1; 2794.8; 2798.3; 2801*1} 4030.3; 4033.1; 4034*6; 4883.5. _ . Aatlaonyt* 8598.1; 2877,9) 3237.5. Mafineelunt* 2795,5; 2802.7; 2888*1} 2779,3. M l *

2333,1; 3839,6; 3883.5; 40S7.8,

Titt!- 2840,6; 2363.3; 3862.3; 3176,0. tfolVbdanu*!-. 3132*8} 3170*3. Tungatent* 2944.4 (7) ' Aluadnuai* 3082.8} 3098.7; 3944.0; 3961,5. Ooppert* 2824.4; 3847,8; 3874.6. Oadalttau. Silveri»

3261.1; 5403,6; 3486.2; 4799,9. 3880.7; 3388,9.

Tltenluai*

3349.0 (?)

Hlokali-

3414,8; 3493,0 (?)

Cobalti«

3483.5 (?)

Calcium-

3188,9; 3179,3; 3933.7; 3968.5; 4226,7. (

Vaaadluai*

3183,4) 3184.0; 4379,2 (?)

Colmnbluat- 4058.9 (?) Chroad.uat» 4864.4) 4274.8; 4289.7. Iodluat*

3256.1; 4311,3.

MBreurvi* 2636.5 (?)

sMfc# v&WB$t£ %M§m tUJf Siuarde* St* Lawrence Country, Row York Sdwarda Mine Irom- Throughout epaetrua. Slllcont- 2516.1} 2839*5} 8881*3. BaagaiMMHM- 2376.1} 2794.8} 8798.3, 2801.1} 4030,8} 4033*1} 4034,6} 4823*5. jfagtatelatttOOPBOriSSM«* SSS*-

2779.8} 2798,6| 2802.7; 2852,1,

2824,4} 3247,6} 3274.0.

9833*1) 3639*6] 3683.5} 4067*8, 2940.0, 3175,0} 3262*3) 2&63«3«

Aluminum-

3082.2} 8098*7) 3944.0} 3961.5.

Coluafolom-

3094,8 (»}

MolybdenumCalcium-

8138*3

8160.9} 3179.3, 8933.7 ) 3968,5, 4226,7.

Titanium-

3349,0} 3349.4} 3361,2; 3672,8.

Cadalumi- 3261*1; 3404,6) 3483,2; 3610,5; 4799,9. SilverI-

3880,7) 3382,9.

Rlckolt-

3414,8; 3498,0 (?)

ymmttau*

3183,4} 3184,0; 3185,4; 4679,2.

Chronluai- 4254*4; 4274.8} 4289,7.

S u cl e #8t-

St, Joseph lead Compmez Edward#, St* Lawrence County, Sew York Via !« ***» I MjU mmm CTIlAi ilft% M W

/

Iron>- Throughout spectrum. Silicon»- 2316,1; 8588*5, 8881.6. WmmasMjf

swa.i,

i m . e ,

2 7 9 0 ,3 , s e o i . i i

eose.s,

4034*6; 48SStS. Memeeluau-

2779.8; 2795,8; 2802.7; 2359.1.

Oopperi- 2824*4; 3247,6; 8974*0. Seadt- 2835.1, 3639,6; 3683,5; 4067,8, Slat* 2840.0; 8868,3; 5175,0, 5262.3. Oelltaait* 8948*6 (?) Tungstcnt-

2944,4 (?)

Aluammt-

5003,8; 3093.7; 3944,0; 3961*5.

KolyMenuatCelelUPt*

5132,6;

3158.9, 3179,3; 5983,7; 5968,5; 4226,7.

Titanium.. 3872,8; 5561*8, IndltaH*

5256,1; {probably net)

Cedaluat-

5861,1; 5495,3; 3486.2; 5610*5; 4799*9,

silver;- .3880.7; 3888,9. Rlckelt-

5414,8; 5493,0 (?)

ChroaAuattColtcablumt-

4254.4, 4174*8; 4889*7, 4058.9 (?)

4 0 3 5 .1 ,

Sample #9i*»

St* Joseph Lead Compeny Bonne Terre* Missouri Irom» Throughout epeetram. g M U i t > 2£770,lt 2794.8; 2798.3; @801*1; 4030,8; 4033.1; 4034,8; 4823.8. ailieont-

2816

,1 ; 8888.5; 8881,6,

Oopperi- 8884,4) 3247.6; 8274.0. HAKillS** S & M j-

Ha**

8779,8; 2795.5; 2802.7; 2858,1,

8833.1, 3659,3; 5683.8; 4087,8. 2940.0; 2833,3; 3175.0; 3282.3,

Pallium -

2945,6 (?)

gerganluiat-

5059,1 (?)

Aluminum.. 3082.2, 3098*7; 3944,0; 3961,5. Molybdenum-

8152*5} 3170.8. r

Cfliolumi-

3158.9; 5179.8, 5933,7; 3968.8; 4226,7,

Titanium*

3549,0; 3349*4; 5361,2; 3372*8.

Xndlurat- 3256,1; 5059.4 (?) Cadmium-

3001.1; 5408*6; 8466.8; 3610,5; 4799.9.

Silveri-

8280.7; 3382,9.

Cobalt»-

3453.5, 5408,1 (?)

Hlekeli»

5414*8; 5493.0 (?)

Tungeteni- 8944*4 (?) Vanadium-

5188,4; 3184,0; 3185,4.

Chrowluai-

4254.4; 4274.8; 4289,7.

Im

b

M

flO.t* Magma Copper Company 3uperlor* Arlaona

Irani* Throughout apactrum Araoniei- 8549*8, 8483,5} 2780.2, 8880,5. SHIms*

2S16.1; 2828.5} 2881*6;

^ S£SS^ * h ) U m& V l^ & V T nBi S798*5j SS01*1S 4090*31 4033.1}

Antimony!-

2898.1, 2877.9} 388?,6, 5232*6,

Maaaaaluai. Copwm-

2796*6, 2802.7, 2853.1.

2824.4} 3247,3} 3074*0.

L a M l* 8883.1} 3339,3} 3883.S. Tint- 2840.0, 9863,3; 3175.0; 3862,5. Blaautht-

8938,3} 2897.9; 3087.7.

Pallium- 2948*8 (?) Tuagatem-

8944*4 (?)

Qarmanluat it e t e a a « -

3030.1; 3289*6, s o s s .a , 3 0 9 2 .7 , 3 9 4 4 *0 , 9941*6.

Molybdenum!CalBlTOt*

3188.9; 3179.3} 3938.7; 3968.8; 4228.7.

TitaniumSiivagi-

3132*6.

3872*1, (?)

3880*7, 3382.9.

(

CaAalaai-

3881,1; 3403,6} 3610*5; 4799,9,

Klckali-

3414.8, 3493.0.

Cobalt!♦

3463*5 (?)

Chroajtsa! - 4254*4; 4274,8; 4289,7. Ihdiuat-

8256*1 (?)

Sample # U i .

century z s m Company Baxter Springe, Kansas Iront-

Throughout apeetrua. 2510,1} e m 8 *8 , 2881*6.

Slllaoni-

W m m m * * 'smeki* 2794*8} s79s *s ; 2 8 0 1 ,1 ; 40350,8; 4 0 3 3 .1 , 4094*9; 4823,5,

Magaaaluw!* Leadt-

2779,8; 0799*9, S802.7, 8868*1,

8895.1; 3639.6} 3083.5.

Slflt- 2840,0} 2863.3} 3176,0; 3263.2. AluatoeaiSlMSEt-

Sees,2 } 3092.7} 3944*0; 3961,6. 3158,9) 9179,3; 5933.7; 3968*6, 4223,7.

CopBert-

3247,5} 3874,0; 2824.4.

Silver.-

8830*7; 3382,9,

Slekeli-

3414*8, 3493.0,

Oallluat-

2943.6} 2944,8 (?)

Vanadium-

3183.4} 3184,0} 3186*4; 4379.2,

Titanium-

3378.8, 3341*8.

S to m d m t*

4254.4, 4274.8.

Jkmwiam Sine Company of Tennessee

X m m * Thronghont apeetnsa* Slllcont- 2816.1) 2828.8, 2881.8, Sf 4033*1$ 4034*0$ 4003* 0 * Magncalmat- 2795.8, 2802,7, 2882.1, 2779.8. Oalllunt- 2948,6 (?) Lead!- 2888.1, 8689.6, 5685.5, 4087,8. Aluadnuai- 3082.2, 5092.7, 5944,0; 5901,5. Calcium-

3158,9, 8179.3, 5935.7 , 8968.8, 4228,7.

COPP«r.t- 2824.4, 3247.6, 8874,0 Cadaluan-

3201.1, 5403.6, 5466,2; 4799.9,

.SilverI* 8280.7, 8882.9. llakeltTint-

5414.8, 349S.0 (?)

2840.0, 8178.0, 3262.5, 3863.3.

Chroaluat- 4254.4, 4274,8; 4289,7 OeraanluiB!-

5089,1; 8269*8,

Bmmlm Metallne Mining and leasing Company 0yfbflit0k ajik m vAaau*j|lxMjtw qh i iS&ak^ "%aa|n Qt?aaaa%a0Fa*.aw'S^aawa Iront* Throughout epeo trust. Slllaoni- 2516*1; 2628,5; 2881.6* »* 3 7 9 4 .8 ; 2798.8, 4828.5.

2801

.1 ;

4030.83

4038,1; 4084,6#

Mamesluat- 2779,8; 2795.5, 2802.7 ; 2862.1. Poppert- 2824.4; 3247,8; 3274.0. Lead;- 2883,1; 8639.8, 8688*6; 4057.8* OeraaalumtAluminumCalciumTint-

8089.1

(?)

8082*2; 8092*7; 8944.0; 8961.8. 8168,9; 8179,8; 8933.7 ; 5988,5; 4228.?,

8176,0 (?)

Vanadium

3183.4; 3184.0; 8186,4.

Cadmium-

8261.1, 8403,6; 8466,2; 4799,6,

Silver>-

8880,7; 8832,9.

TitaniumKlokclt-

3361,2; 3372,8; 3849,0*

3414,8; 5498.0 (?)

Chromium-

4264,4; 4274*8; 4289,7*

ARTHUR LAKES LIBRARY COLORADO SCHOOL OF MINE GOLDEN, CO 80401 ^

27,

S«bb1 » #14t» M*w 2 *m » y Zlne Company Auatinvilla, Virginia Iron«» Throughout apoetrum. Sllloani-. 2616,1; 2528,5; 2881.6, Moreum*

2538.5 (?)

W m fM m m t *

2S7Q.1) 2794,8; 8790,3} 8801.1; 4030.8; 4033,1; 4034.8; 4883.8, 2779*8} 2795.5; 8808.7 ; 2852.1.

I#Mt»

2833.1} 3389.8; 3683.8} 4087.8.

Blaautht.. 3087*7 (?) Alxa&mmf

3082.2; 3098.7; 3944*0} 3961*8.

SSMM»Tim-

6186.9} 3179.31 3938*7} 3968.5; 4286,7.

3175.0} 2840.0; 8863.8} 3868.3. 3183.4; 3184.0; 3183.4,

Tltanlnm-

3349

,0 ; 3861*8} 3178.8.

Cp d j w p *. 3847,3; 3974.0; 2824.4. 3861.1; 3403.6; 3466*8; 4799.9. MISH**

8880,7; 3388.9,

Hlokali-

3414*8} 3493.0 (?)

Antlamyi- 3867.5 (?) Qallinan-

2943,3 (?)

Tuna*t o m - 2944.4 (?) Qpgaajalttat.

3039,1; 3839,5.

Ohroalmi- 4254.4; 4874.8.

Samolo #18t»

WKmSmMMM mlltXuK WO^plCljf

V l f i k M J K H K J f < i A att

a**. M .ja

jutiyi.

aA o U M a iuAAiii

Hoaiclare, Xllinoia I r o m - Throughout spoetrusa. SiXlootn

2516.1; 2528,5; 2881.6.

Steanoiitaat- 2795,5; 2802.7 ; 2852.1. i M i t t t * 2794.8; 2798.3; 2801.1; 21973.1; 4030.8; 4033.1; 4034.81 Iwrinlf lf| 48BS.S. Ww %#m SgfiESE1*

2824.4; 3247.6; 3274,0.

flat* 2840.0} 2863.3; 2175,0; 3262.3. Gallium-

2943.6; 2944.3 (?)

OoramgdiaatAluminum*

3059,1; 3266.S (good) 8062.2; 8092.7j 8944.0; 8961,8.

KoXsrhdonuznt-

8182

,6 .

Calolttai*

8158.9; 3179,3; 8988,7; 3968.3; 4223,7.

OadmlTOi-

3261.1; 3408.6; 8466,2; 3810,5; 4799,9.

U tttt* *

aeao*?? ss ® 8 ,t.

jflBfeolt*

8414,8; 5498,0 (?)

Cobaltt*

3433.6; 3406,1 (?)

loadi-

3689,6; 3683,6; 2833,1; 4057.8.

Chrowltcai- 4284,4; 4274,3; 4289,7.

39,

Heel* Kinlng Company Wallace, Idaho Sllloom- 2516,1; 2588.6; 2801.3. M xm evt -

8536.5 (?)

m u tfrn m M i*

8@?6*1| 2794.8; 2798.3; 2801.lt 4030,3; 4033,1; 4034.5; 4823.5.

Magnealuat- 2795.5; 2802.7; 2862.1. Iront- 7hrou#iout apeetnm. leadt- 2833.lt 3639,35 3688.5; 4057,8, 71ni»

2840.0; 2863,3; 3175.0; 3202.S. 3088.2; 3092,7; 3944,0; 3691.5.

Oaleluau-

3158.9; 3178.31 39SS.7; 3908,6; 4226.7.

YonadlTMU-

3183.4; 3184,0; 3185,4; 4378,2.

Colmriblmai- 4058.9 (?) CCBPert.

3247.6; 3874,0.

fUSttt*

5880.7; 3388,9,

Codmlimi.

3201,1; 3463,8; 3403,6; 3010.5; 4799.9.

llefcell*

3414,8; 3483,0.

Cohalt i-

3453.5 (?)

Titanium*

3331,2; *S7B,8| 3349,0. 2944*4 (?)

Antlaorm- 8877.9; 2598.1 (?) Chromium » Indium » Araonlew

4254.4; 4274,8; 4289.7.

3855.1 (?) 2780.2; 2850.3.

Sample #17i»

Bunkar Hill & Sullivan Hining & Concentrating Co. K&lldg^ Ir o m -

Throughout apeotrun.

Araenloi~ 2349.8; 2466.5; 2360.5; 2730,2. MarourVi* 2633,6 (7) Sllleoni. 2613*1) 2S28.6) 2801.6. 2S73.li 2794.8) 2798.3; 2801.1; 4020.8) 4633,1; 4034.6) 4883.6. Antimony!» 2693,1; 2877.9; 3232,5; 3867,5, Magnaaiumt- 2796.8; 2802.7; 2852.1, SSSSHS.*- 8824,4) 8247,8) 3274.0. M > * 2Ja*»

2833.1) 3639,6} 3683*6. 8840,0; 2683.3} 3173.0) 3262,3.

Tunaiataai« 2944.4; 4SS4.8. Aluminum-

3063.2; 3092,7) 3944,0) 3961,6.

MolybdenumCalaluni*

3132,6.

3168,9; 3179,3; 3933,7; 8988,5; 4226.7.

Cadmiums- 3261,1; 3403.6; 3436.2) 3310.5) 4799,9. Indium-

3256.1 (7)

Sjlyajrt.

8080,7) 3382.9.

Hlekalt-

3414,8} 3493.0 (?)

Tltanlvcai* BlaaMttuVanadium-

3349.0; 3361,2; 3972.8, 3087.7; 2898.0; 2938.4. 3183.4; 3184*0; 3186*4; 4379.8.

Chromium- 4264*4; 4874,8; 4889*7.

Saaa 3c #181*

A, S, and 8 * Ooapany A— *%*m^ SW.*** XX0 $ ii R8^36&l| Socorro County, How Mexico Xroni- Throughout apaotrum, Sl.li.ooat*

2516.1; S m a , 6 ; 8681.0,

Manganoeat- 2876.1; 8794.8; 8798,5; 8301.1; 4050.8; 4035.1; 4034.5; 4888,5. K»«n»aiu«t-

8796,S) 8808,7; 2779.8; 2858.1,

OoPBOrt- 2894.4) 1S4Y.S) 3974.0. M a d t- 2833.1; 8639.6; 8683.8; 4057.0. Tint-

8840.0; 9863,8) 8175*0; 3209,3.

Blamutht- 2898,0; 8938,3; 8097.7* Tuagafcant- 2944,4 (?) Aluminumx-

3083,2; 3092,7$ 3944.0$ 3901.5.

Calcluai-

8158*9; 3179.3; 3933,7; 3908,5; 4220,7.

Ca&sluat-

3801,1; 3403.6; 8465.S) 8610.5; 4799,9.

Silvan-

3830.7 ; 3382,9.

HlOkali-

3414,8) 8498,0 (?)

Cobalti- 8455.5 (?) IndiumChromium-

3250,1 (?) 4254,4; 4274.8; 4289.7.

Sample #19»»

A, S. and a. Con®any Amarillo* Texas CSunniaon County, Colorado Iront- Throu^iout spectrum. ailieom-

S513*1j2688,5; 2881.6.

mmsmmt* aers.ij 2794.8; 3798*3; seoi.i; 4030.8; 4033.i; 4034.8; 4823,5.

Mamoatumi-

8779.8; 2795.3f 2802.7; 2858*1.

Antlsa&tm* 2898.1; 8877.9. Cogpert- 2884,4; 2847*3; 3874.0, Oeadt* 2833,1) 3639,8; 3683,5; 4097.8. fiat* 2840,0; 2863,3; 3175.0; 8232.3. Blaaiuthi-

2898,0; 2938.8; 3037,7.

OalllUB!-

2943*9 (?)

/

TtmgateBu-

2944.4 (?)

Aluatoaai-

3082.2; 3092.7; 3944,0; 3961.5,

Calcium-

3158,9; 3179.3;

3933.7; 3068.5; 4223,7,

Cadaimat-

8261,1; 3403,6;

3466,2) 3610.5; 4799.9.

Silver!-

3280,7; 3382,9.

Bickalt-

3414,8; 3493,0 (?)

Cobalti-

3453.5 (?)

Infliuat-

3256,1; 4101.6; 4511,1.

Oolttwblumi- 4058*9 (?) g « M tey»

4254,4; 4274,3; 4289.7.

ARTHUR Lakes library COLORADO SCHOOL OF W GOLDS?, CO 80401

45,

8>aol0 I W i»

A. S. and R. Ooapaajr Amarillo, Texaa hineoln County, Revada Irons*

Throughout apactruia.

gilioont- 0516.1) 8503.5; 8381,8. -Manaamaot* 8876,1| 2784*8; 2798,3; 8801.lj 4080,8; 4055,1; 4084.8) 4888,5. Uusm m im »* ,8788*6; 2808.7; M M . 1.

Cogpan*

8884.4; 5847.0 3874.0.

•MitSl* 8853,1) 8030,0; 5683.5) 4057,8. Bigsaths*

8388,0) 8888*5; 8007,7,

TungafeWRt* 8844,4} 4009.8) 4894,8. Aluaixnau*

3082.8) 3092,7; 5944.0; 5961*5.

Calcium)*

3158,9; 3179.3; 5933.7; 5968*5; 4026.7.

Cadsduan-

3261,1; 5403,6; 3436,2; 4799,9,

S13aa£t.

5280,7; 5562*9,

Hlotoslt*

5414.8; 3495,0 (t) 3361,3) 3570,8) 3349.0.

7anadluan* Bat-

3185,4) 3184,0; 3185,4.

3175,0) 2885.3; 2840,0) 3030,3.

XaAlumt»

3039,4; 3956,1) 4511*1.

Chromiuat* 4054.4; 4074.8; 4089,7.

A. 9, and R. Cougiany A3MI2?XAXO 0 *.93£i8US

Sant* Crus County, Arison* Iron*- Throu^iout spectrum, Slllsem-

3516.1, 2538.5, 2881.6,

Manganeaas- 2373.1, 2794.8, 2798.3, 2801.1, 4030.8, 4038.1, 4084.8; 4823.5. Antlaonyt* 8598.1, 2877.9, 3837.6, 3232,5. Magnesium- 8779,8, 8798,5, 2008.7, 8882,1. Arsenic)«

2780.2, 2860,5, 2349.8.

Copperi» 2824.4, 3247.6, 3274,0. Leadt* 2833.1, 38S9.3, S683.5, 4057.8, flat* 2840,0; 2863.3, 317S.0, 5262,3. Blaautht*

2898.0, 2938,3; 3067.7,

gallium.>

2943,6 (?)

Tungstens- 2944.4, 4294.8. Alumtouat-

3082.2, 3092.7, 3944.0, 3961.6. 8Mie«* 8170*3,

Caloluat.

3188,9; 3179.3; 3953.7; 3908.5, 4226.7.

TltanluanSllr*r»* CadialUBH-

3372.8 (7)

3280.7; 3382.9. 3261,1; 3403.6, 3436,2; 3910,5; 4799,9.

Kickelt-

3414,8; 3493,0 (?)

Cotoaltt-

3453,2 (?)

Indium-

3039,4; 3256*1,. 46U.1.

a M I W * *089,9 (?) • 4254.4; 4274,8; 4209,7.

A. 3* and B* Cotsgwusy Amarillo, faxaa Doloraa County, Colorado Irons- Throughout spectrum. M M C W U I* 2518,1; 2528,5; 2BS1.8. S&ragaaeaet- 2078,1; 2794,8; 2798,1; 2801,1; 4030*8; 4033.1; 4054.8; 4623.5. Maaaaaluai- 2795,5} 2802,7; 2852*1; 2778,8. M > *

2833,1; 3639.3; 3683,S; 4007,8.

siaamtht- 2938.3; 5067,7. 3082.2; 3092,7; 3944,0; 3931,5. OQPCart-

2824.4; 5847.8; 3274,0.

MMm**

MZOSi 8382,9.

Hlotealt-

8414.8; 3493.0 (?)

Tint*

2840.0; 2883.3; 3175.0; 3862,3,

Tunaatam-

2944*4 (?)

MolgbdanuauCalolumi-

31®,9; 3179.3; 3933,7 ; 3958,5; 4223.7.

Vanadium*Cadmium*Indium*-

3132,6 (?)

8163.4; 8184.0. 3261,1; 3403,8; 3468,2; 3610.5; 4799,9,

3039.4); 38S6.1; 4101,7; 4511.1.

Coluafalum*- 40®.9 (?) Chroa&uati- 4254*4; 4274,8; 4289,7,

9m n 3#. #881 * A. 3* And B* Cotnpauy Amarillo, Texas Ouray County, Colorado Iront Throughout spectrum. Siliconi- 2516.1; 2528,5; 2881,6. lSaSE$Sl&t* 2676.1; 2794,8} 2798.3; 2801.1; 4030.8; 4033.1; 4034*8; 4833,S* Maaaealumt* 8793,5; 2002,7; 2852.1. Compart- 2824.4; 3847.6; Ifl.O, Saadi*- 2835.1; 3339.6; 3683,3; 4087,8. Ua«-

tS40.0| 2363.3; 3170.0.

33$Bsa$6B«- 2944.4 (?) .HjMttthi*

8988,** 3067,7 (?)

Aluatoumt- 3088.8; 3092,7; 3044,0; 3961.3. JttMMMWP* C jtiM m t*

S1SS.8; 3170.3 (good)

3168,9; 8179.3; 3933.7; 8968,3; 4286,7.

VaMtdllWi* 5183.4; 3184,0* 3188*4; 4879,2. Tltanlumi- 1872*8 (?) StiS2Z»«

3980*7; [email protected], 3801,1; 5405,6; 5468.2; 5610.5; 4799,9.

Cobaltt-

3403.1; 5455,5.

Hlokeli.

3414,8; 5493,0 (?)

Xadlmt* 3039*4; 3286,1 (?) Chromium- 4834,4; 4874.8; 4239.7.

Samp la #24 1 A* S« and ft* Company

h EwmmM cilia county, Ariaona rr s

*% ^hl

Xro;n»

m mMrh '-Mhi^ar

A

m ^J m iMk-^a>^a'Aii

Throughout apaotrusa.

Silicont- 2516.11 2528.5; 2881.6.

mamrnm.%* M r« * ii 2794.8; mm.$t a s o i.i; 4030.81 4088. i i 4034*8; 4823.3•

W tm ** l M » *

flBBHHM* SaadiTlni*

2779.8; 2798.8) 2802.7) 2852.1.

8884,4; 8247.6; 8874.0.

2833.1; 3639.8; 3683.5; 4037,8, 8840.0) 2863.3) 3175,0; 3262.3.

Tung*tan I» - 8944.4) 48-94*8. Blawutht- 8007,7 (?) Aluminum;-

3080.8; 309B.7; 3944.0} 8951,5.

Molytadonuiai-.

Cftlcluatm m .* *

Cadadumi»

3 1 3 8 * 6 ,-

3158.9) 3179,3; 3933.7; 3909,5; 4226,7, 3880*7; 3582.9. 3261*1; 3403,3; 3466,2; 3610.S) 4799,9.

Cobalti-

3405.1; 3483*3.

Slckelt-

3414,8; 3485,0 (?)

Indlumt-

3836*1 (?)

vanadium-

4979*8 (?)

Chromium-

42S4.4)

4874,3) 4289.7,

Stop la #28»

A* 3* and R, Company Amarillo * Texas M ineral County* Colorado Iro n s*

Throu^sout spectrum.

Arsenics*

2349.8} 2453,5) 0780,8) 2860,5.

S ilico n s-

2513.1; 2528.5} 2881.6.

mnsmrs»»9i* 2078.1) 2794.8) 2798.5} 2801.l j 4050.9; 4033,1; 4034,8; 4823.5.

M W lM t t *

2795.5} 2802*7 } 8808,1,

Antimony* Coopert beadsfin s -

2698.1; 8877,®) 3888,5} 3237,5. 2824.4; 3247.5; 3274,0.

2853.1) 3639,6) 3S83.S; 4799,9. 2840.0; 2833,3} 1175.0; 3282,3.

g ia D g * *

8945,6 (?)

Tungstens-

8044*4; 4294,8.

Alumtocat -

3082.2) 3093,7; 3044.0; 3961.6.

HolTtodentnat a ilt e r i-

3280.7; 3388,®..

CadmlUMSH lckelt -

3261.1; 3405,6; 5466.2) 3610.5; 4799.®, 3414,0) 3495.0 (?)

CaJoltjBy-

3168.9; 3170,3) 3935,7} 5968.S) 4289.7.

VanadiumsIndiums-

3158.6; 3170.3.

3183.4; 9184.0} 3185,4} 4979,8. 3856.1 (?)

Columbluat -

4058.9 (?) 4254.4; 4874.8; 4239*7,

49.

5saeM-iSS«-

A» S. and R, Company AnarIlia. Taxaa Grant County, Hew Hexieo Iront-

Throu^sout apacfcrwa.

Gillaont- 3513.1} 2528*5} 2031.3. Manganaaai. 2S76.lt 2794.8} 2798.8j 2801.1} 4030.8} 4058.1} 4034.8} 4828.8. i w a w l w u . 2779.8} 2705.5} 2802.7} 2852.1. Coroan. 3884.4} 5339.3} 5385.5, Inadt. 2855*1} 3839.3} 5383*3} 4799.9, 2I&I- 2840,0} 0883*3} 5178*0} 3260*3, Tnnxatam- 0944*4 (f)

AlmOxmf

8080.2} 3092.7; 3944.0} 3961.5.

IfolxMantan* 3138.3. Calalnni. 3188.9} 3179.3} 3933.7} 3968*6} 4228,7. M322Z*«

8280,7} 3882,9.

Cadnltaat» 3261,1} 3403*6} 3466.2} 3610,5} 4799.9. Hlokali. 3414.8} 3493*0 (7) Antiaonyt- 0877*9} 2598.0, Indluat* 3256,1 (?) Chromium.. 4254*4} 4274.8} 4289,7.

Saaola #27tA,

S. and R. Coagjany Amarillo, Taxaa

Coohlaa County, Arison* - #1 Ironi»

Throughout spoetrum.

Silicon)» 2516.1} 2528.S; 2881.6.

WmmKmmi* 2976,1} 2794.8} 2798.3} 2801,1} 4030.8} 4033,1} 4034.8} 4823.6.

Mamaaiuatt* 2779,8) 2795.5} 2802,7} 2862.1. Coppari. 2824,4} 3247.3} 3874,0. Tin). 2840,0} 2833.3} 3176.0; 3262,5. £■»*&.!*

2833.1} 3639.3} 3683,6.

Pallium-

8948,6 (?)

Tungsten)- 2944,4 (?) Bismuth)-

3067.7 (?)

Aluminum)- 3082.2) 3092,7} 3944.0) 3961,5. IfolrhdanmatCalcium)-

3168,9} 3179,3} 3933.7} 3968.5) 4226,7,

Titanium)-

SZM9PJCadmlumt.

8132.6} 3170,3.

3361,2) 3372,8 (?)

3280,7) 3382*9, 3231,1) 3403*6} 3436.2) 3610.S) 4799,9.

Cabalti-

3403.1} 3453,3.

Hlckait-

3414.3} 3493*0 (?)

Indium)-

3039,4) 8356.1) 4101,7} 4511,1.

Chromium)- 4254,4} 4874.8} 4289.7,

iss&Liiii*

A# 3« and 1* Company A m rlllo g T&xmw

Goehlm Cowty* .Arison* *> # 0 .IffOfn*

^hrou^Lout tpaQtarnm. tttL6 *lf IMBffi} M

8 1 t*«

2708*3} 2801.1; 4030,8; 4033.1;

m t i m m t * 2508.1; 2877.9; 3232*5; 3867,6, HBBZaiSxmi- 8770*8;' 2796.6; 2802*7 ; 2852,1. ArBonloi- 2780*9; 2360*0* Coppari- 2884.4; 3247.3; 8874,0, 2833,1; 3639*6; 3683.6; 4067.8. 23&I-

2840.0; 3178.0; 2033.3.

Galllumt-

2943.6 (?)

Tunaataat- 2944*4 (?) Maauthn.

3067,7 (?)

Alaatlroeat.

Cftloltuat-

3168.9; 3178.3; 3933.7j 3968,8; 4226,7.

fltanlua;AUHB»CjMmt-

3082.2 ; 3092.7} 3044,0; 3961,5.

3349,0; 5361,8* 3372,8.

3280.7; 3388.9. 3861,1; 3403.8; 3466,2} 3610.5; 4799.9.

Mctealt.

3414.8; 3495,0 (?)

Indiuat.

3039.4} 3266.1 (?)

Qhroaluau-

4854.4; 4874,8; 4889,7.

3&atMJ££*~ A. S. and R. Coapany Amarillo» Taxaa Hohave County* Arlsona - #1 Xroat* Throughout spectrum. Silicont- 8516,1; 2520,5; @801.6. Kanaoneaet. 8678.li @784.0; 8798.5j 8601.1} 4050,8; 4055.1) 4054.8; 4883.5. Bagpealuau* 8779,8; 8795.6; 2808.7; 2852.1. C o p p e r 8884.4; 5247.8; 3274.0. Araenioi. 8450.5; 2700.2; 2890.5. leads* 8835.1; 3859.6; 3683.5) 4057,8. Tlni-

2840,0; 3175,0; 8883.3; 3262.3.

Antiaonyt* 2877.9 (T) Pallium*

2943.6 (?)

faogatcm*

2944.4 (?)

m ® m ~

5067.7 (?)

Alinttlnuat.

3082,2; 3098,71 3944,0; 3961.5.

Molybdenums- 3132,6; 3170,8. Caloltaat-

3158.9; 3170,3; 3933,7; 3088.5; 4226.7.

Vanadiums-

3183.4; 3184.0; 3105,4.

Titaniums-

3978.8 (?)

31Av*ri» Cadmiums-

3880,7; 3302.9. 3881,1; 3403,8; 3466.8; 8810,6; 4799.9.

Hloteelt-

3414,8; 3493,0 (?)

Cobalt>»

3453.5.

Indiums-

3039.4; 3258,1; 4511.1.

Columbluas -

4058.9.

Chromiums- 4254,4; 4274.0; 4289.7.

Sang)la#30sA* S. smd ft* Qcm&maj

AilSBiX*3LlXO0 *#3£fl® Jk

JB TB

jg^.

4HTtkdfe.'di^*^fa

Mohave Counter* Arlsona * #2 Irons-

Throu;£»out apaofcruau

Silicons-

8616,1} 8688,5} 8681,6.

Arconlct-

8466,6; 8780,2; 8860,6.

Miumapocos-

8673,1; 8704.8; 8708,3; 2801.1; 4030*8; 4033,1; :loliii©ft

Antlaorm- 8588,1; 8877,0; 3232.8; 3207.8. Hagaaalttat- 9779*8; 2795,5; 2802.7; 2882,1. QOPPOrt- 2824.4; 8247.3; 3874,0. loads-

2833.1; 3630.6; 3683,3; 4057,8.

Tins- 8840.0; 2863.3; 3173.0; 3302,3. galliums- 2943.3 (?) Item*tans- 2944.4; 4294.8; 4008.8; 8947.0. Blaamths- 3067,7 (?) Aluminums- 3082,2; 3092,7; 3944.0; 3061,5. Moiytdaaaums- 3132,6* Calciums-

3158.9} 3179,5) 3933.7) 3938,5; 4226.7.

Vanadiums-

3183.4; 3184.0; 3185,4.'

mwalMW*

3318,8 (?)

SilversCadmiums-

8280,7; 3382,0. 8861*1; 3403*6; 3466.2; 8010,5; 4799.0.

Slckals-

3414,8; 3403,0 (?)

Indiums-

3039.4; 3256,1 (?)

54.

5a»al» #Slt-

A. S. and H. Coa^sany Aisarlllo, Texae X«v*p*ii County, Arizona • #1 Iront- Thj*ougboufc Bpoefcpw. -Mlioont. 2S13.ll 2528.5} 2361.6.

m m a m & L 6073.it 2704.85 2798.51 2a01.it