184 ANALYSES OF ROCKS AND MINERALS, 1880-1908. 
G, from Caney. 
H, I, from Niotaze. 
J, K, L, from SE. } sec. 13, T. 28 8., R. 12 E. 
M, from near Fall River station. 
73 81 96 
35 26 80 
05 06 04 
18 08 13 
80 81 73 
99.92 | 100. 04 99.94 
a Total Fe. 
SANDSTONES FROM COLORADO, UTAH, AND ARIZONA. 
A. Yellow sandstone, Armejo quarry, Colorado. Analysis, partial, by T. M. 
Chatard, record No. 289. 
B. Sandstone, Robinson mine, Summit County, Colorado. Analysis by L. G. 
Eakins, made in the Denver laboratory, partial. 
('. Sandstone from the Logan mine, Rico district, Colorado. Consists mainly of 
quartz and sericite. 
D. Altered sandstone, in contact with C. Same constituents, plus limonite, 
anglesite, and a hydrous magnesian mineral. Analyses C, D, by W. F. Hillebrand, 
record No. 1914. Described by Ransome, 22d Ann., pt. 2, p. 287. 
E. Banded sandstone, Peoa, Utah. Described by Diller in Bull. 150, p. 80. 
Analysis by Schneider, record No. 1280. P. R. C. 16. 
F. Brown sandstone, Flagstaff, Arizona. Analysis by T. M. Chatard, record No. 
1144, 
RIO shonsar ations abba ea beeeiavadpsateecedouweesoscueseac Maat. (Undet. | 3100) <6559)| sce ie cicl fascias ice 
sO? at M002 sass Gace tae rae Ree be etadensBuaisacin: undet. ayllls 32 
TiO above 00? secre ecscesacatos peteceurateamerten } 1.19 |undet. |f? 1-90 li 5.49 29| 2194 
9 sis cra sisrareserstaiaiids. sila a/ecrasiatraisisisis's sale Rule oie asians and aid Re save ¢19.04] nome |........|...-.... 5.77 
chegaatelslsisitsidgte coterie givelgaaysthe kevin dy os siecnee passers alee JOS: Nenana anaes ee 
cgusceSreeetesbseenehee senses seeds |Seamesee PLACE lance woee|eeeraseclacacee 
A ikesie Sis Ne AUER meets Be gaara anda Ete es trace DO4 Wermaaee pastes 
sscinhat cheaedeoeteaaaoen |. dagamnalenieeceae|aeshacen| BIACE |aco..83 Beasties 
PDE sored dhesare oi2 sini clsre 2 Pinersisheiorrescleieasi ma Sa mae emasineinsiceeyant as Sener leeaied ete 04 | TONE ier cece is beinsenheis 
i 
| 
| 94.57 | 98.42 | 99.66 | 100.77 | 99.14 99. 96 
@ Silica and insoluble matter. b Loss on ignition. ¢ Calculated to satisfy bases. 
