OF ARKANSAS. 909 
ples of copper pyrites 
a |g found, and a similar va- 
oO . 
Ly 18 riety of ore was also 
Lu | : P ; 
ob | L Compact magnesian limestone, with casts and tu the hes ay 
buy | 7) | orthis. logical position on the 
ult property of Mr. William 
| ou . R. Williams, on section 
“Lael. 32, township 17 north, 
sf Light buff, impure magnesian limestone, with]. 
d 1 | r 40 couchoidal fracture. range 6 west. 
L 
a) a The veins of calespar 
[ul in which the copper oc- 
So curs, have no constant 
“| rs | u 20 Gray tniel- bedded a ieee ar withldirection, where seen; 
a orp syrugi t rt siliceous. . . 
al L ferruginous chert, 10Wer par but it is probable that, 
EaES : when the country comes 
gz| z iz Place of zinc ore. : : 
vex e to be examined more in 
pit Thick-bedded magnesian limestone, full of|detail, they may be found 
a xl L | | 202 crevices; lead and copper bearing rock. : 
Fal connected with some 
L L 
system of true veins. 
The principal working for lead, in these rocks, in Lawrence county, has 
been made on the property of Mr. KE. W. Houghton, six miles from Pow- 
hatan, on section 10, township 17 north, range 2 west, where as many as 
twenty pits have been sunk, from which between one and three thousand 
pounds of galena have been taken out. No profitable lode was reached, 
therefore the diggings were discontinued. Surface lead ore (“float min- 
eral”) has been occasionally picked up, over a district about one-fourth 
of a mile in breadth, and extending several miles in a north-west direc- 
tion; but no continuous vein has so far been discovered: 
In the openings which have been made in this county, the cap rock is 
first reached; after penetrating it, at a depth of thirty or forty feet, 
members (a) and (2) of the preceding section are reached; in these, small 
crevices occur, in which the lead ore is found, accompanied with clay, 
charged with oxide of iron (“gossan”). These crevices have a bearing 
north-east and south-west, but do not extend continuously, any great dis- 
tance. The abandoned shafts, at this locality, had become mostly filled 
with rubbish, so that 1 had no opportunity of seeing the position of the 
ore at the bottom. When more time can be devoted to the examination 
of this county, a more satisfactory conclusion may be arrived at, in regard 
to this lead region, than could be gained in the time allowed for a simple 
reconnoissance of the country. All that can be at present stated, from 
14 
