254 
GEOLOGY OF NORTH CAROLINA. 
tain and its 6purs, and affiliated ridges. The rocks here are the same body 
of slates, — talcose, argillaceous, quartzitic (itacolumite of Lieber), which 
carry the ores of Lincoln. And the most prominent ore-beds of the 
King’s Mountain region are of the same character as those of the same 
range already described, — granular, slaty, but with a larger admixture of 
hematite, and so having a decidedly red streak. These ore-beds appear 
to constitute a double parallel range, the divisions much more widely 
separated than in Lincoln. The Yellow Ridge Ore Bank , on the most 
southerly outcrop, at the western base of King’s Mountain seems to be- 
long to the eastern division. The bed here, which has been extensively 
wrought, and was penetrated to a depth of 120 feet, is reported by Mr. 
Hanna and others to be 16 feet thick (occasionally 40), with a steep wes- 
terly dip. Hanna says of the ore, “ it is notably magnetic but more 
highly peroxidized than that class of ‘gray ores’ generally.” It is finely 
disseminated in a talcose gangne, being strikingly like the ores of Lincoln 
county. At the western base of Crowder’s Mountain, in a northeasterly 
course, on this range, is the Fulen wider ore-bed, on the headwaters of 
Crowder’s Creek, and near the forge ; and still further in the same direc- 
tion Mr. Hanna speaks of a field which is covered thickly with fragments 
of ore, although no bed has been exposed. 
There is also a notable succession of parallel beds of magnetiferous 
arenaceous slates in a nearly vertical position and with a northeast strike, 
on the summit of Crowder’s Mountain. 
The following analyses of several samples of these Crowder Mountain 
ores have been furnished by Hanna: 
42 
43 
44 
45 
Silica,* . . . 
.... 11.02 
23.14 
9.27 
2.58 
Peroxide of Iron, 
72.00 
58.36 
75.17 
84.53 
Protoxide of Iron, 
2.03 
5.40 
2.6S 
1.30 
Sulphide of Iron, 
0.09 
0.12 
0.20 
0.02 
Sulphuric Acid, 
0.02 
0.12 
0.01 
0.01 
Phosphoric Acid, 
0.05 
trace 
0.02 
0.07 
Loss by heating, 
1.65 
2.78 
4.02 
11.88 
Metallic Iron, 
, . . . 52.02 
45.13 
54. SO 
59.29 
These analyses show a high grade of purity. 
No. 42 is from the slaty beds of the Pinnacle. 
And a small percentage of 1 itanic Acid. 
