242 ANALYSES OF ROCKS AND MINERALS, 1880-1908. 
For analyses of nickel-iron of meteoric origin, see the preceding section of this 
bulletin. 
II. SULPHIDES AND ARSENIDES. 
BISMUTHINITE. 
From the Rosario mining district, Sinaloa, Mexico. Analysis by W. H. Melville. 
Described by him in Bull. 90. 
Blisccoun ies Habiead acoaanstne Senededdemsade Saat atenihs biieelNsatdind aqenncH gicdsaewien: anes 72.90 
Dib paresis seine 222 Seed ae elere ea eyed dedatale aierddlerede aidan ecadaal Dante Ai rae sweat bien 6.03 
OU oaiaacnie setniwienee s Saneew nouns Feecae SE Seen Dedee meet eee edeeede mee swEmel 1.67 
TOS egies ritatre etwas neudieteicieccisinns S paisa Siemens. neiswinebiemare seed aatnes SEE mR Re meter 35 
Ga occu sednateare sine geeiie ris eecsbtake eeemacinns He acnieicteitls a slanciaromine eiagaGiosG Samhain 18.11 
QUaFtE a 2s seeesoxseeeeeeaceieks sesemeonass vetoes soe tu kaite ce teortobsecetoasis ateemacy -63 
99.69 
METACINNABARITE. 
Crystallized material from New Almaden, California. Analysis by W. H. Melville. 
Not free from admixtures. 
LBs pacaseciaks oe eveke meee ete eee eke cece: M8: 01 | CACOsewensciace grec aesdargeeedueomeatescey 7 
Se sce oe ta pace Ue en aie 23568: |) Quarte en. 22 coet eet vee ia sd a eee does 4.57 
BG io Sos cejec pees Geis Bias Rese ps e61. | Organic matters <: 5 ccccece esse eseicaseeees 63 
COn cgodhsdeiod otek ws ueegaaeeeaeiaG nine eeate trace — 
Di ecmrade thai a+ saanrsdroconene tektites -90 99. 26 
Mi ears eiramemmnaiweaiea: ante eecetm See eeS 15 
Another specimen of metacinnabarite from Knoxville, California, gave Melville 
the following figures: 
BEL. CRMs SOAR MA SITE P RT TECARS: OE DAS RCM RPORBAR?R SR ATR EE We AE7 We UO) ERROR AT 98. 48 
Fes cha Sache as becasue cane ated eaten hee ree ene eh erea eons 69 
SIO se wits, See tecly Senin utaacromsions ian eam lee mes a1 rennet aaee geri arc d ay Set 71 
99. 88 
The latter mineral was described by Melville and Lindgren in Bull. 61. 
COVELLITE. 
From the East Greyrock mine, Butte, Montana. Collected by G. W. Tower. 
Analysis by W. F. Hillebrand. Color, indigo blue. Massive. Sp. gr., 4.76 at 26°. 
CU secreted Bese s Ae AeG btehtnseephnied ouchnatene aled Oiem oe embathatwamer aed eeue ences 66. 06 
DS jaichecaiayeteee roi Deed epsearatcinn yn SIS atnteaeacta var arava Deere aenties Se SANS H eraieraieiee ayaa ecerser nese 33. 87 
FRG ess citera Sie amin echerd eyed nee eee eerie fereisiaiaie Minin eee eraraiestins aiararetenlengts aro sieiat dey OaiaisiaemraIE 14 
Tns0li ble isiscencseosnecn meme emis ccisecceeninie bead me einicic snc ace aeaeluidcinn annus comet amoesies ey 
100. 18 
POLYDYMITE. 
A massive ore from the mine of the Canadian Copper Company, Sudbury, district 
of Algoma, Ontario. Specific gravity, 4.541. Analysisby Charles Catlett. Described 
by Clarke and Catlett in Am. Jour. Sci., 3d ser., vol. 37, 1889, p. 372. Composition 
nearly Ni,FeS,. 
A. Actual analysis. 
B. Analysis corrected by deduction of quartz and chalcopyrite. 
