876 GEOLOGY OF OHIO. 



replaced by sand-rock. The Hone ore is a local deposit, or pocket, on the 

 summit of a knob, and covers from one and a half to two acres. It is 

 seven feet thiak in the center of the deposit — in one place swelling to 

 eight feet, but becoming thinner at the oatcrop. It is covered with clay 

 from one to ten teet thick, but the covering has admitted the air, and the 

 whole body of the ore is thoroughly oxydized. There is little appearance 

 of lamination, and no traces of carbonaceous matter were det-cted. The 

 ore w.is doubtless originally a carbonate deposited in the form of a mud 

 remarkably free from silica and aluaiina. The borings, where the ore 

 is seven feet thick, were intimately mixed, and constituted a sample, 

 which, analyzed by Mr. E. S. Gregory, of Youngstown, showed the fol- 

 lowing constituent elements : 



Water combined lO.Gl 



Iron spsqiiioxide 79.58 



Silicic acid 4.22 



Aliiuiina 1.16 



Oxi<!e manganese l.OG 



Lime carbonate 1.38 



Magnesia carbonate O.iO 



Pbospboric acid 1.03 



Suli-)!jur O.G? 



Totals •. <J9.40 



Metallic iron O.").?! 



Pbospborus 0.45 



The ore is rich in iron, and is easily smelted. It is easily dug, and is 

 delivered by railroad to the furn ico very cheaply. There are probably 

 15,000 t >ns in this single deposit. 



Another deposit of ore which is believed to be in the horizon of the 

 Iron Puint ore is found on the Whitloak farm, a little northeast of Mox- 

 ahaU. This deposit is irregular in outline, and the extent is not well 

 ascertained. The ore where first opened is laminated with occasional 

 films of coal formed from isolated fragments of coal plants. On the out- 

 crop the ore is oxydized and dark red in color ; but under cover it becomes 

 a regular black-band, according to Mr. Chamberlain. I have no full anal- 

 ysis of this ore, but it appears to be of excellent quality, and has proved 

 itself such in the Moxahala Furnace. A single determination of the 

 iron in the oxydized portion of the ore, showed 44.50 per cent, of metallic 

 iron. 



More recent developments of the Whitlock ore show a change from a 

 black-band to the unstratified oxydized character of the Hone ore pre- 

 viously described. The ore thus changed is very fine, yielding over fifty 



