152 THE IRON ORE DISTRICT OF EAST TEXAS. 



brown and yellow sands may be utilized for foundations and chimneys, and 

 some of the more ferruginous conglomerates and sandstones may also be used 

 for the same purpose. 



On the northeast corner of the Wm, Watkins survey the ridge running 

 northwesterly through this survey into the Redin Mason headright is com- 

 posed of a purplish brown ferruginous sandstone suitable for building pur- 

 poses. This stone lies in layers varying from six to eight inches in thickness 

 and breaks with a square fracture. It will not admit of a polish or even very 

 smooth dressing, but for ordinary building purposes where the roughness of 

 the surface will not form an objection this stone will answer all purposes. A 

 similar sandstone occurs on the B. Cannon headright and on the Peter Pin- 

 chum and Robert Hightower headrights. On these headrights the stone exists 

 in large blocks. North of the Little Cypress Creek a highly siliceous ore or 

 ferruginous sandstone is also found scattered through several headrights m 

 the neighborhood of Lancaster's saw mill on the Wm. Beckwell headright. 

 This sandstone lies in a bedded form in several of the higher hills on the J. 

 Petsick headright. It has been used for road making purposes, but appears 

 to be too soft for such use upon any roads having heavy traffic. 



In several places throughout the eastern portion of the county small knolls 

 covered with blocks of a brown sandstone occur. These have no economic, 

 value beyond locally supplying the farmers with foundations for their build- 

 ings. The most extensive deposits of this sandstone are found on the J. P. 

 Townsend headright, where there are two hills about eighty and one hundred 

 feet high. The stone here is in the form of large irregularly shaped blocks, 

 and some of it very soft. 



No detailed locations of the indurated yellow or brown sands or altered 

 greensand can be given. They are scattered extensively over the country. 

 In many places these sands contain casts of fossils. 



No regular quarries of any sort are open within the limits of the county, 

 and very little stone of any kind is used. 



GREENSAND MARL. 



Deposits of greensand marl occur at several places throughout Harrison 

 County. These deposits vary from a pure pale green colored sand to a drab 

 or dirty white or buff gray colored clayey sand, spotted with light or pale 

 gray rounded and oval shaped spots, and the whole having a greenish shade 

 through it. This sandy clay is in many places indurated by exposure and 

 presents a slightly glazed appearance upon the surface. 



The areal extent of these sands is not known, as they generally lie deep and 

 are only exposed in a few places throughout the county. The following sec- 



