MINERAL RESOURCES. 



225 



even of iron-colored streaks; the outcropping of quartz, calcareous and other 

 spars; serpentine, talc, chlorite, garnets, and other crystalline combinations; 

 disintegrated streaks in the country rocks; contacts of different older rocks 

 among themselves or with newer ones; changes of vegetation, and numerous 

 other indications, justify the expectation of the existence of ore deposits. 

 Most if not all of these favorable conditions exist in the mountains of Trans- 

 Pecos Texas. 



In addition it is an undisputed fact that the continuations of Texan moun- 

 tain ranges into Mexico and New Mexico contain excellent mineral districts. 

 The geographical boundaries have no influence on the geological character of 

 the mountain chains, and there is therefore no reason to doubt the ore- bearing 

 character of the mountains in "West Texas, even if the mines and the limited 

 number of faint attempts at prospecting did not prove the presence of base 

 and precious metals, since we can not deny and doubt the ore-bearing of the 

 same mountains in Mexico and New Mexico. 



From the examinations which have been made, the Quitman, Carrizo, and 

 Chinati mountains must be classified as excellent mineral districts, and no 

 justifiable reason can be brought forward why the Hueco, Guadaloupe, Sierra 

 Diabolo, Davis, Eagle, Van Horn, Chisos, Corazones, and St. J ago mountains 

 — in short, nearly all of the Trans-Pecos mountain ranges — should not be also 

 classified as mineral lands, since their geological and lithological character is 

 favorable, and numerous favorable indications of the fact that they are ore- 

 bearing, which can not be overlooked or misunderstood, present themselves 

 everywhere, even to the superficial observer. 



Among the minerals observed in this region are: 



Agate, cloudy. 



Agate, banded. 



Agate, moss. 



Aragonite. 



Alabaster. 



Atacamite. 



Azurite. 



Argentite. 



Bromyrite. 



Bloodstone. 



Chlorite. 



Cuprite. 



Chalcocite. 



Chalcopyrite. 



Cyanotrichite. 



Cerargyrite. 



Cerussite. 



Calamine. 



Cupro-descloizite. 



Calcite. 



Doleryte. 



Dolomite. 



Flint. 



Feldspar. 



Franklinite. 



Grossuharite. 



Glauconite. 



Gypsum, massive. 



Gazthite. 



Galenite. 

 Gold, native. 

 Hornblende. 

 Hematite. 



Limonite. 



Malachite. 



Marble. 



Melaconite. 



Magnetite. 



Marcasite. 



Massicot. 



Onyx. 



Psilomelane. 



Pyrolusite. 



