108 GEOLOGICAL SURVEY OF ALABAMA 



Calcium Oxide CaO 11 



Magnesium Oxide MgO 10 



Potassium Oxide K^O 28 



Sodium Oxide Na^O 40 



Iron Oxide Fe^Os ... Trace 



99.87 



The feldspar is the normal potash feldspar CDntaining a very 

 small amount of iron, .25%. 



Examined by Charles Catlett and reported July 26th, 1887. 



(Signed) W. F. HILLEBRAND, 



Acting Chief Chemist. 



(Note) Sample from Section 7, Township 18 S., Range 11 E., 

 Randolph County, Ala. 



In the letter of transmittal of the above analysis Mr. 

 Hillebrand says: 



"The supposed kaolin has been analyzed in full and 

 found to possess practically the composition of a pure 

 kaolin. Whether it is suitable for use in the manufac- 

 ture of porcelain can only be determined -by subjecting it 

 to tests of a practical character which this laboratory 

 cannot undertake to execute. 



"This information can best be obtained by submitting 

 samples to some manufacturer of pottery or porcelain. 



"The feldspar would doubtless be suitable for the pur- 

 pose of porcelain as it contains but a minute quantity 

 of iron." 



Samples of the quartz, feldspar, and kaolin, drawn 

 from the same locality, and submitted for laboratory test 

 in 1889 to the State chemist, N. T. Lupton, at Auburn, 

 Ala., were analyzed and. reported on as follows : 



N. T. LUPTON, STATE CHEMIST. 



STATE CHEMICAL LABORATORY. 



AUBURN, ALABAMA. 



March 4, 1889. 



The specimens of Feldspar, Kaolin and Quartz from Mr. J. R. 

 Abrams of Greenville, Ala., have been carefully analyzed with the 

 following results: 



Feldspar . Kaolin Quartz 



Moisture 0.20 6.45 



Water of Combination 0.80 13.25 0.20 



Silicia 63.13 42.63 98.45 



Alumina 21.18 37.26 0.87 



Iron 



Lime .. Trace .048 Trace 



