Mance: Quarry Industry of Southern Indiana 



175 



The five plants at present operating in Indiana are located 

 at the following points : 



Mitcliell. This plant uses limestone and shale. 

 Speeds. This plant uses limestone and shale. 



Buffington. This plant uses blast-furnace slag and crushed limestone. 

 SjTacuse. This plant uses marl and clay. 

 Stroh. This plant uses marl and clay. 



Indiana ranks second only to Pennsylvania as a producer of 

 Portland cement altho only five plants are operated in the State. 



The deposits of stone in Indiana with which this part of the 

 study is concerned are included in the Mississippian rocks of 

 the State and are described in the earlier chapters of the study 



Composition and Nature of Portland Cement. The 



following analyses are taken from Eckel's work on ''Portland 

 Cement Materials and Industry in the United States" (p. 155) 

 and are quoted by him from reports on the limestones of Indiana 

 as shown (Bulletin No. 522 of the U. S. Geological Survey) : 



ANALYSES OF MISSISSIPPIAN LIMESTONES FROM INDIANA 





1 



2 



3 



4 



5 



6 



7 



8 



9 



(Si02) 



0.50 



0.70 



1.74 



1.60 



0.65 



0.90 



1. 13 



0 



31 



0.48 



(AUG 2) and (FeoQa) 



.98 



.91 



.29 



.18 



1.00 



3.00 



1.06 





32 



.15 



(CaCOs) 



96.60 



96.79 



95.62 



95.55 



95.54 



95.00 



96.04 



98 



09 



98.91 



(MgCOa) 



.27 



.23 



.89 



.93 



.40 



.22 



.72 







.63 











10 



11 



12 



13 



14 



15 



16 



17 



18 



(SiOs) 



0.84 



0.86 



0.64 



0.76 



1.26 



1.69 



0.63 



0. 15 



0.50 



(AI2O3) and (FesOs) 



. 13 



. 16 



. 15 



.15 



. 18 



.49 



.39 



.64 



.71 



(CaC03j 



97.39 



98. 11 



98.27 



98. 16 



97.90 



97.26 



98.20 



93.80 



93.07 



(MgCOs) 



.78 



.92 



.84 



.97 



,65 



.77 



.81 



4.01 



4.22 



1. Chicago and Bedford Stone Company, Bedford, Lawrence county. Eighth, 

 Ninth, and Tenth Ann. Repts. Indiana Geol. Survey, 1879, p. 95. 



2. Simpson and Archer quarry, near Spencer, Idem, p. 94. 



3. 4, 5. Dunn and Company, Bloomington. Twenty-first Rept. Indiana Dept. 

 Geology, 1897, p. 320. 



6. Monroe Marble Company, Stinesville. Report of a geologic reconnaissance 

 of Indiana, 1862, p. 137. 



7. Salem, Idem, 1886, p. 144. 



8. Stockslager quarry, Harrison county. Idem, 1878, p. 96. 



9. Milltown. W. A. Noyes, analyst. Twenty-seventh Rept. Indiana Dept. 

 Geology, 1902, p. 98. 



