GILPIN IRON ORES IN P1CTOU 



COUNTY. 



Oxides of iron, 



75.67 



Oxide of manganese, 



.52 



Carbonate of lime, 



2.44 



Phosphoric acid, 



.22 



Sulphur, 



.29 



Silica, 



19.43 



Alumina and magnesia, 



1.43 



141 



100.00 

 Equal to metallic iron, 54.36 



Overlying the Blanchard bed, at a vertical height of several 

 hundred feet, are a series of beds, varying in thinkness from three 

 to fourteen feet, forming two sides and an end of a synclinal trough, 

 as proved by my investigations during the past season. The ore is 

 similar to those just described, and on assay gave 42.5 per cent, of 

 metallic iron . The Pictou Coal and Iron Company own well 

 selected areas in this district, covering large quantities of these ores. 

 Still passing to the Westward, the next ore that claims our atten- 

 tion is the Limonite, found in the valley of the East River. In 

 1873 I opened the vein on the property of the Albion Mines Com- 

 pany, already referred to, and found it to be twenty-one feet wide, 

 and it was proved the same year one mile to the south. From the 

 data thus acquired, the passage of the vein has been traced several 

 miles up the river, and it finally crosses to the west bank, where 

 immense surface boulders mark its presence on the property of the 

 Messrs. Primrose of Pictou. As far as investigations have been 

 carried, the ore has been found at the point of contact of Lower 

 Carboniferous and Upper Silurian strata. It is of the finest quality, 

 as shown by the following analysis, and varies in width from five to 

 twenty-one feet. 



Analysis of Limonite from area of the Pictou Coal and Iron Co : 

 Oxide of iron, 88.92 



Oxide of manganese, .78 



Alumina, .71 



Carbonate of lime, 1.44 



Carbonate of magnesia, .82 



