344 



CENTRAL MINERAL REGION OF TEXAS. 



TABLE I. GOLD, SILVER, COPPER, LEAD — Continued. 



No. 



Locality. 



Material. 



Gold, 



oz. 



pr ton. 



Silver, 



oz. 

 pr ton. 



Copper, 

 per 

 cent. 



Lead, 

 per 

 cent. 



Remarks. 



32*f 

 33* 



Nonley Shaft, Gil- 

 lespie County. 



Head of Crab Ap- 

 ple Creek, south- 

 east of Enchant- 

 ed Rock, Gilles- 

 pie County. 



North Br. Sandy 

 Creek, Riley 

 Mountains, in 

 Llano Countv. 



Sandy Shaft, Gilles- 

 pie County(J). 



Sandy Shaft, Gilles- 

 pie County(J). 



Sandy Shaft, Gilles- 

 pie County(J). 



Sandy Shaft, Gilles- 

 pie County (J). 



Sandy Shaft, Gilles- 

 pie County(J). 



Sandy Shaft, Gilles- 

 pie County(J). 



Sandy Shaft, Gilles- 

 pie County(J). 



Near Iron Creek, 

 Gillespie Co.(J). 



Near Iron Creek, 

 Gillespie Co.(J). 



Hickory Creek, Gil- 

 lespie Co. (J). 



Pedernales River, 

 Gillespie Co. (J). 



Pedernales River, 

 Gillespie Co.(J). 



Kino Creek, Gilles- 

 pie County (J). 



Talcose and graph- 

 itic schist with 

 pyrite. 



Pyrite, brassy in 

 schist. 



Quartz 





Trace . 







So-called ore 









streak. 



Copper test by T. 

 B.C. 



34f 



35*f 

 36*f 

 3*7*f 

 38*f 

 39*f 

 40*f 

 41*f 

 42*f 

 43*f 

 44*f 

 45*f 

 46*f 

 4?*f 





Trace . 







Graphite and py- 

 rite. 

 Graphite, pyrite. . . 









Trace . 









Graphite and py- 

 rite. 

 Altered pyrite . . . 





















Graphite and py- 

 rite. 



Graphite and py- 

 rite. 



Altered pyrite .... 























Galena. . . 





Trace . 

 Trace . 

 Trace . 

 Trace 

 Trace . 





Trace . 

 Trace . 





Galena 







Pyrites 









Galena 







Trace . 

 Trace . 





Galena 



Altered pyrite . . . 























♦Analysis by J. H. Herndon. 



fAnalysis by L. Magnenat. 



3. ZINC. 



One accustomed to the western ores and to the extensive deposits of zinc- 

 bearing ores in the northern and eastern mining regions can not but be sur- 

 prised at the sparsity of this metal in Central Texas. Aside from the traces 

 obtained in the calcite in Caylor's diggings (described above) there has not 

 been any indication of the presence of zinc in any rock or material in the 

 Central Mineral Region. This is a remarkable fact, and one which must be 

 passed without any explanation. In a tract so large, and with such varied 

 features as this, it is not impossible that I have overlooked occurrences of 

 zinc-bearing minerals, but nothing of the kind has yet been brought to the 

 attention of this Survey in any manner, and no claim has been made, to my 

 knowledge, that any such ores exist in the area covered by this Report. 



