430 CONTRIBUTIONS TO ECONOMIC GEOLOGT, 1902. [bull. 213. 
deposited after the conditions favorable for the solution of silica and 
the deposition of ocher had passed. Groups of acicular crystals of 
this mineral, several inches in length, are not uncommon. It also 
occurs in white granular veins. The barite is called "flowers of 
ocher" by the miners. It remains in the residual soil which covers 
the quartzite outcrops and affords the best means of tracing the 
ocher deposits. It is found at numerous points on the low quartzite 
ridge north and south of the Etowah River, and prospecting at these 
points lias never failed to reveal more or less extensive deposits of 
ocher. A small amount of barite is annually shipped from the Car- 
tersville district, the material being obtained in the course of ocher 
mining. 
DEVELOPMENT. 
The ocher industry in the vicinity of Cartersville has developed 
rapidly within the last few years. At present four mines, with their 
accompanying mills, are in active operation, while two additional 
properties have been sufficiently developed to be worthy of note. 
Numerous undeveloped prospects are to be found within a few miles 
of Cartersville, and it is probable that the industry will increase in 
importance in the future. 
The mines and mill of the Georgia Peruvian Ocher Company are 
located about 2 miles southeast of Cartersville, on the south bank of 
the Etowah River, at the wooden bridge. The deposits and work- 
ings here have been described in considerable detail on a preced- 
ing page of the present paper. Recently the workings have run 
into large masses of ocher, and in consequence work is now mostly 
carried on in open cuts, instead of the small tunnels which were for- 
merly used. The mill is located at the river bank, near t lie mine. 
The methods of milling the product do not differ greatly at the various 
ocher plants in the Cartersville district, and a general description of 
the practice followed will be given later in this paper. 
The Cherokee Ocher and Barytes Company is working at a point 
about 1 mile northeast of Cartersville. The workings here are all 
underground and quite extensive. They have been opened up along 
a slope driven down on the dip of the beds, which here dip eastwardly 
at an angle of 30° or so. It is to be noted that in these mines the 
ocher appears to have replaced particular beds of the quartzite, so 
that it now occupies a fairly definite stratigraphic position. In this 
respect the deposit differs greatly from that of the preceding com- 
pany, where replacement appears to have taken place largely along- 
joint planes in the quartzite, causing great irregularitj^ in the shape 
and position of the resulting ocher deposits. 
At the plant of the American Ocher Company, located 1 mile north- 
east of the railroad bridge over the Etowah, preliminary mining work 
had been done at the time of visit, and a mill was in process of con- 
struction. Trenches and open cuts exposed ocher, but the under- 
