GREGG COUNTY. 



169 



Silica 10.10 



Ferric oxide *75 .42 



Alumina 6.78 



Sulphuric acid f0 . 11 



Phosphoric acid JO .44 



Lime 0.10 



Magnesia . . . .' Trace. 



Loss 7.01 



99.96 

 One hundred parts of iron contain 0.363 of phosphorus. 



* Metallic iron, 52.79. f Sulphur, 0.044. % Phosphorus, 0.192. 



The southern portion of this field in the Alexander Furguson and Marshall 

 Mann headrights is occupied by a thin deposit of laminated ore and ferrugi- 

 nous sandstone. The ore and accompanying sandstone lie in the shape of 

 large flat slabs, some of which measure from five to six feet in length and 

 from two to four feet in width, but in no case do the combined thicknesses of 

 the two reach six and most of them not more than four inches. 



Throughout portions of the Skillern headright a deposit of laminated ore 

 is reported as being struck in boring wells. This deposit is said to lie at a 

 depth of about twenty feet. Its thickness is not known. 



TABLE SHOWING ANALYSES OF ORES FROM THIS DIVISION OF GREGG COUNTY. 



No. 



Ferric 

 Oxide. 



63 



.2 

 ■B 



a 



a 



< 



Sulphuric 

 Acid. 



•2 

 o . 



Oh 



6 

 | 



3 



.5 

 S 

 a 



M 



oi 



a 



© 



as 



« S, 

 g.5P 



"3 



o 





958 . ... 



50.48 

 75.42 

 66 98 

 46.59 



35.80 

 10.10 

 11.60 

 44.00 















35.34 



959 



960 



6.78 



0.11 



0.44 



0.10 



Trace. 



7.01 



99.96 



52.79 

 46 88 



961 















32 61 



















Localities. 

 No. 958. A. Furguson headright. 

 ' No. 959. I. Skillern headright. 

 No. 960. W. Robinson headright. 

 No. 961. On Gladewater road, two and a half miles west of Longview. 



The only other portion of the county north of the Sabine on which iron 

 ore was found to exist at all is on the western side, near where the Upshur 

 County line crosses the H. H. Edwards headright. This ore deposit, with 

 the exception of some ridges on the farm of Mr. Lewis Barnes, is very thin 

 and scattering, and consists chiefly of a ferruginous gravel, with a few blocks 

 or bowlders of conglomerate and laminated ores scattered throughout the 

 gravel. The siliceous pebbles found associated with the gravel are abundant 

 in this region. The ore on the ridges on the Barnes farm might more prop- 

 erly be designated as a highly ferruginated sandstone, and is found in large 

 slabs forming the crests of the three ridges in several places, and also form- 

 ing a debris of broken material along the sides of the intersecting creeks. 



