ECONOMICAL GEOLOGY. 
221 
Oxide of Iron, 
Lime, 
Phosphorus, ... 
Sulphur, 
Metallic Iron,. 
83.96 
0.22 
0.00 
0.05 
0.03 
0.08 
58.73 
53.31 
The upper bed, last described, is represented by No. 3, the lower by 
No. 4. These analyses were made by Mr. G. Lobdell for the owners, by 
whose courtesy a copy of them was obtained for this report. About 5 
miles southward from the above locality the same bed makes its appear- 
ance on the farm of Mr. Hines; here, however, it is highly magnetic, 
tine grained and dense, although still showing the decidedly slaty struc- 
ture of the first of the Gaston beds. At this point it is reported as 3 to 
4 feet thick. 
These ores are of conspicuous purity and obviously adapted to the man- 
ufacture of the higher grades of iron and of steel. Aud there is evi- 
dently a range of ore-beds here of considerable extent. 
In Granville county, about a mile north of Tar River, and the same 
distance eastward from Fishing Creek, is an outcrop of a coarse, granular, 
somewhat slaty magnetic ore. having very much the appearance of that 
of the upper bed at Gaston. The rock is a feldspathic talco-quartzitic 
and chloro-quartzitic slate. This bed is revealed only by the numerous 
fragments scattered over the surface through the forest for several rods 
along the roadside. This ore is in a small triangular patch of Huronian 
slates, intercalated between the older rocks of the region. It is reported 
that there are other outcrops of iron ore near Rainey’s Mill, and also in 
the neighborhood of Lyon's Mill, but I have not seen either of them. 
Iron Ores of Johnston and WaJce . — There is, according to Dr. Em 
mons, “a large deposit” of limonite four miles west of Smithfield ; the 
specimens brought to the museum by Mr. Guest, owner of the land, re 
semble very closely the bog ore of Duplin; they are more or less sandy 
and earthy, irregular lumps, or nodules. 
Another “bluff” of limonite is referred to by Emmons as found at 
Whitaker's, seven miles southwest of Raleigh, in Wake county. These 
last two are in the Iluronian slates. And hand specimens of very coarsely 
crystalline magnetite of ten to fifteen pounds weight, associated with 
syenyte, are found within a mile ot Raleigh; and compact hematite also 
occurs in veins in the same vicinity. These and other specimens of these 
species and of limonite are from different parts of the county, and are from 
the surface, as no openings have been made ; but they indicate the very 
common occurrence of this mineral. 
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