24 



FLORIDA GEOLOGICAL SURVEY^ SIXTH ANNUAL REPORT. 



A well put down by the Edgar Plastic Kaolin Company is reported 

 to have passed through coarse superficial sand, lo feet; kaolin- 

 bearing sands, 30 or more feet ; sticky blue clay with fullers earth 

 beneath, about 40 feet; scarcely indurated shell stratum, 20 feet. 

 The well terminated on a hard limestone rock at the depth of go 

 feet. 



Fig. I. — I'lt uf the Edgar Plastic Kaolin Co., Edgar, Putnam County. 



Mining ball clay. 



The kaolin in Lake County occurs under conditions similar to 

 those found in Putnam County. The superficial sands here as at 

 the Edgar mines are coarse and contain white siliceous pebbles. 

 The kaolin-bearing sands are gray in color except where stained 

 red with iron. At places a small amount of mica is found in the 

 kaolin sands which is screened out in the process of washing. 

 San.ds of similar (Character but with a larger proportion of iron 

 occur in the vicinity of Leesburg and Hawthorne and are used for 

 road materials. 



Two plants, under the management of the Edgar Plastic Kaolin 

 Company, were engaged in mining ball clay during 1913. The 

 value of the clay produced, although no't separately given, is 

 included in the total mineral products of the State. 



BRICK AND TILE. 



The surface formations of north and central Florida contain 

 many clay beds, some of which are suitable for brick-making. 

 The clay deposits, however, are often of local extent and variable 



