244 ANALYSES OF ROCKS AND MINERALS, 1880-1908. 
LOLLINGITE. 
From Teocalli Mountain, Brush Creek, Gunnison County, Colorado. Sp. gr., 7.400 
at 14.5°, corrected for impurity. Analyzed by W. F. Hillebrand and described in 
Bull. 20. 
ING easier dere tralecraccioe Se Seemed SDaeieembnc id Seo baed te eee ee Hasee ea oe SAR 71.18 
ef Oisdsvissain saa aigihnenheinimeaes Be sete RaGer Ss Meee ee dae Sasa uieleieitiee eect ceetrions tw nieleineies De -56 
Bilvaetess ted ore an ceils cisin unten: to seein eGer Eden ee Dhol aomit esata ssotescacuisaene, - 08 
Chews seexesne ese aeainistecuens 6 cementing Seaham ease eeeceaeenise Este remssa eae ses 39 
RG psc cece Gh ese Ne pees esl cee eucin ss Renieens Eseteeiees aeeee eee eS 22.96 
CO zis tte esaeneees Weedees eeetereeds ceaeteresion: ne eevee pesemeel se emedeeats 4. 37 
IN ad cee tinn id cess oiind acer aa Mae Bt nee eae reed aed ceded semis eee 21 
99.75 
A doubtful arsenide of nickel and cobalt has also been examined by Hillebrand and 
described in Proc. Colorado Sci. Soc., vol. 3, pt. 1, p. 46. From the Rose mine, Grant 
County, New Mexico. Sp. gr., 6.644 at 20° Probably a mixture. Ni: Co=3:1, 
approximately. 
Eee eae RACRI Aan AN IIE SERS REPL Tai04: | INI; COw 2 crear seetews luck veaditeeeeeete, den, DOUS2 
ea egy lala og SEE See A EAC sto SALE EERO TB? | ACA O ie crajcials cin BUR se taiesean omer aie Gate De 09 
Se ap ant yt Saag ee fi Det eieind cers Sie Sieae BEES! || MEO ciccsicpetesieg ceiinsitecusibel ste dwaseeieceate 182 05 
weategs se Dede - 04 ee 
ares 03 99. 12 
shadvabe:s aianieelcieseiiaseisiveiaiaaeeecinte 7a PEA 44 
ARSENOPYRITE. 
From Franklin Furnace, New Jersey. Approximate analysis, on only 0.25 gram of 
material, by E. C, Sullivan. Notable as containing cobalt. The arsenic is probably a 
trifle too high. 
POs saz cieetacaieaks Stet dceaentseteniase va aoe Ad neste teheess Ratan mataeaabewinemnse 32, 48 
COnccursmsamaamannr seer seeeelainabesis motion Gulhem nae atte taraeld & See chtaisglarae ae Abaeeieisls 1.16 
BS cracls canemeumawiis va PAaRaadacindaue es Te Naleeinda deme calemaaaeinsine palsalemenp KE ey 48.72 
Bie sige Gosiemeacisinassigisishe aeeiedin eisevantrmenectiadcitn emia @aatnda cakmeredeie eecaneMeeis ak Sy 18. 80 
101.16 
GLAUCODOT. 
From the Standard Consolidated gold mine, Sumpter, Oregon. Analyzed by 
W. T. Schaller, and described in Bull. 262, p. 132. 
A. Analysis as made. 
B. Analysis recalculated to 100 per cent, after deducting gangue. 
