Hstics of onyx marbleg. 



Crystalline structure. 



Finely columnar; radiating.. 



"er cent. 

 0.47 



Granular 



Microgranular and columnar .. 

 Microcolumnar 



Microgranular and columnar 



or . . . 



little 



jreci- 



Granular and columnar. 



Finely columnar; radiatiag. 

 Microcolumnar in cross section 

 Microcolumnar; radiating.. 

 Finely columnar ; radiating. 

 Microcolumnar 



.do 

 -do 

 -do 

 .do 



Finely columnar ; radiating 



HjO. 



0.29 

 0.57 



(*) 

 0.40 



(*) 

 (*) 

 0.37 



0.38 



0.68 



Total. 



Per cent. 

 100. 29 



100. 18 

 99.80 



100. 04 

 99.41 



100. 19 

 99.78 

 99.75 



99,93 



100. 29 

 100. 56 

 99.20 



100. 00 

 99.93 



Analyst. 



R. L. Packard. 



Do, 

 Do. 



W. D. Bigelow. 

 G. P. Merrill. 

 W. D. Bigelow. 



Do. 

 K. L. Packard. 



Do. 



Do. 



Do. 



W. D. Bigelow. 



Do. 

 G.P.Merrill. 



Dr. Edw. Hitchcock. 

 R. L. Packard. 



•8 : Green variety, Fe CO3 4.27 per cent 



