Record of Geology of Texas, ISS'Z-ISQG. 
27 
Ashburner, Charles A. 
.product during '1888 at each point where these beds have been opened.” 
P. 367. 
'See E. IT. Dumble ('Coal in Texas). Mr. Dumble’s report is included in 
Mr. Ashburner’s article. 
10. Birkustbine, John. 
Art. Iron Ore Mining in 1887. Min. Resources of the IT. S. 
1887. 
(Iron in Texas), pp. 51-52. Washington, 1888. 
“A large area of northeastern Texas exposes limonite ore which is of 
excellent quality. The deposits do not indicate great depth, 'but their 
liberal distribution would suggest quantities sufficient to maintain iron 
industries. Two blast-furnace plants now depend on these ores, one being 
operated in connection with the 'State penitentiary. 'Estimated upon the 
production of pig iron in 1887, the amount of these ores mined wias about 
9,000 long tons. The following analyses show the composition of the ore 
near Alcalde furnace: 
COMPOSITION OF LIMONITE NEAR RUSK, CHEROKEE COUNTY, TEXAS. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Iron 
46.55 
45.55 
45.17 
40.63 
48.31 
48.11 
Silica 
17.53 
17.67 
30.36 
33.84 
16.63 
10.43 
Sulphur 
0.038 
0.01 
0.037 
Phosphorus 
0.153 
0.069 
0.063 
0.315 
0.384 
3.13 
Water 
13.09 
15.35 
15.76 
13.71 
14.64 
‘‘'A sample personally collected in Cherokee county was analyzed by 
the (St. Louis 'Sampling and Testing works with the following results: 
ANALYSIS OF LIMONITE FROM CHEROKEE COUNTY, TEXAS. 
Per cent. 
Moisture .' 1.63 
Loss by ignition 11.65 
Silica . . 10.81 
Alumiha 3.40 
Metallic Iron 48.24 
Manganese 0.43 
Lime 0.24 
Magnesia Trace 
(Sulphur 1.176 
Phosphorus 0.268 
“EXfploration has been active in Llano county, about 90 miles northwest 
of Austin, where, at an elevation of 1,000 feet above the ocean, a deposit 
of red hematite iron ore has been exposed along a chain of hills running 
northwest and southeast. The iron formations crop out prominently 
throughout the valley, mostly in the quartzite belts. On the table lands 
and ridges mica schist, ferruginous sandstones, 'black shale, and tilted 
veins of slate are encountered at various places. Outcroppings are re- 
ported as numerous and indicating large bodies of ore. 'Samples of the 
ores submitted to Mr. Davenport Pisher, and one to the North Chicago 
[Rolling Mills, show as follows: 
