fKEi, | SOUTH CAROLINA. 295 
lolomite the Lime Rock stone is not ;i very highly magnesian rock, as 
s shown by the following analysis a by J. II. Appleton of a specimen 
*om the Harris quarry. 
■ 
Analysis of Rhode Island limestone. 
pea ( Si0 2 ) 2. 748 
lumina (A1 2 Q 3 ) 309 
ron oxide (Fe 2 3 ) Oil 
Ame carbonate (OaC0 3 ) SS. 23 
Magnesium carbonate ( MgC0 3 ) 8. 80 
/Jointure '. 04 
This rock carries too much magnesia to permit its use in Portland- 
cement manufacture under the present standards, and its amount 
ind location with respect to fuel and market are not particularly 
iidvantageous. 
Small beds of limestone occur at other localities in the State, but 
lone of these are of sufficient extent to be workable, whatever may be 
geir chemical composition. 
PORTLAND CEMENT RESOURCES OF SOUTH CAROLINA. 
Limestones occur at many points in South Carolina, but no good 
lological map of the State is in existence and no recent report has 
3een issued on these rocks. The analyses given below are, with one 
exception, very old, but they will give some idea of the composition 
nd location of the limestones. 
The western portion of the State contains a number of beds of 
metamorphosed limestone or marble that seem to be satisfactory in 
composition, but fuel supply, local markets, and cheap transportation 
ire all lacking. 
Analyses of met amorphic limestones, western South Carolina, 
25.0 
5.0 
Silica (Si(),) 
Sfiumina (A1 2 3 ) 
Iron oxide ( Fe 2 3 ) 
Lime carbonate (CaC0 3 ) 
Magnesium carbonate (MgC0 3 ).. 
7.00 
92.00 
1.00 
3 
4 
5 
6 
16.0 
10.0 
11.0 
1 
J 9.0 
}• 4. 50 
},5 
13. 5 
75.0 
85. 00 
86. 
86.0 
Tr. 
.50 
.5 
.5 
1. Brasstown Creek, Pickens district. 
2. Saluda River, Laurens district. 
3. Highest limestone bed, York. 
4. Lower limestone bed, York. 
5. Hardin's limestone bed, York. 
6. Garlington's quarry, Laurens district. 
7. Limestone Springs," Spartanburg. 
Analyses by Tuomey, Rept. Geol. South Carolina, 1848, pp. 262 261. 
0. 40 
3.14 
90. 56 
Tr. 
"Twentieth Ann. Rept. U. S. Geol. Survey, pt. ti, \>. 142. 
