21 



ASBESTOS. 



1 Near the Sandys, in the neighbornood of Enchanted 

 rock, not seen in sufficient abundance to be of commer- 

 cial value. 



STEATITE OR SOAP STONE, 



In large veins of massive form and light gray color, is on 

 the Hondo, a branch of the Sandy and also on the Sandys, 

 in the mountains about midway of its course through 

 Llano county. The various uses of this mineral are well 

 known. Inexhaustible quantities of it are in Llano 

 county. 



OBSIDIAN. 



About six miles distant westward from Muerto springs 

 in Presidio county, along the valley range of mountains, 

 not from the El Paso road, are large massive veins of 

 obsidian. 



JASPER. 



Large masses of green and red jasper are near the 

 Barilla spring. They are probably altered sandstones of 

 cretaceous age, being near the base of mountains of 

 igneous origin ; I also saw red jaspers among the moun- 

 tains near Fort Davis. 



OPALS. 



Common opals of good quality are quite abundant near 

 Van Horn's well, also sparingly scattered among the 

 igneous rocks of the west. 



PHRBNITES 



Are quite abundant associated with opals. 



AGATES, 



Of both the moss and common kinds, are in the same 

 region; also carnelian and chalcydony, which, when united, 

 form agates. 



We collected good specimens of all these and others for 

 the State collection. 



