712 TRANS-PECOS TEXAS. 



Sideritic iron is found in the second range of the Quitman Mountains 

 near the contact of the granite and porphyritic rocks. Titanic iron is 

 also found in this vicinity. 



Pyrites of iron is found throughout all the mountain ranges of West 

 Texas, some of them carrying precious metals. 



Decomposed silicates and sulphides in the shape of gossan or amalgres 

 are very numerous in the Quitman Mountains. 



Lead. 



Galenite outcrops are very numerous in the Quitman Mountains. The 

 Bonanza mine, Alice Ray, Mule, Alta, Correales, and other prospects in 

 the Quitman Mountains show mostly silver bearing galena in their upper 

 portions. One of the two small prospects in the Eagle Mountains is on 

 galena. The Shafter mine in the Chinatti Mountains produces, besides 

 the free milling silver ores of the upper levels, considerable galena deeper 

 down. Galena is found in numerous prospects in the Chinatti Moun- 

 tains, and the old Spanish diggings in the Comanche Mountains were 

 evidently sunk for this ore. 



Carbonates of lead with silver are worked in the Chinatti Mountains. 

 Zinciferous lead ores with silver are found in the prospects of the Quit- 

 man Mountains, with molybdates and vanadates of lead. 



Zinc Sulphides (Blende) with silver is mined in the workings of the Bo- 

 nanza, Alice Ray, and Alta; there is also found pribramite (cadmiferous 

 blende), marmatite and christophite. 



Antimony is contained in the ores of the Quitman Mountains and the 

 Sierra Diabolo (Hazel mine). 



Nickel exists in the ores of the Hunter and Bona prospects, and probably 

 with the material of most of the Quitman Mountain prospects. 



Uranium in the shape of torbernite, uranochre, uranpecherz, etc., is con- 

 tained in the material of all prospects of the Hunter district (first range 

 of the Quitman Mountains). 



Copper. 



Copper glanz, tetrahedrite, fahlerz, copper indigo, are found in the 

 Hazel mine. 



Malachite and azurite exist in the foothills of the Sierra Diabolo with 

 the outcrops on the west side of the Quitman Mountains, in the Carrizo 

 Mountains, Van Horn Mountains, Chinatti Mountains, and also near the 

 hill range of the Sierra Blanca, in which latter place I found also sili- 

 cates, velvet copper ore, and copper black. 



Black oxide of copper with red and blue carbonates exist in the black 

 lead (foothills of the Sierra Diabolo). 



