MINERALS COLLECTED. 389 



Penninite. Hydrous-magnesian-aluminum-ferric-chromium silicate. 



Mexican diggings, Babyhead Mountain, Llano County. 

 Phlogopite. 



Barringer Hill, Llano County (upon authority of Dr. Edgar Ever- 

 hart, University of Texas, Austin, Texas). 

 Psilomelane. Oxide of Manganese. 



Head of Martin Creek, above Fleming, Mason County. Spiller 

 mine, Mason County. 

 Pyrite. Iron sulphide. 



Nunnely's mine, Llano County; Hoover's Valley, Llano County (both 

 of the above brassy). Little Llano Creek valley, Llano County (yellow). 

 Miller mine, Llano County (brassy). North of Pontotoc, Mason 

 County. Six miles from Llano, on road to Click Gap, Llano County. 

 South of Chaney's diggings, Packsaddle Mountain, Llano County. 

 Pyro-Aurite. Hydrous-ferric and magnesium oxide. 



North of Pontotoc, Mason County. East of Camp San Saba, on San 

 Saba and Camp San Saba road (little). 

 Pyrolusite. Manganic and manganous oxide. 



Hocking Hollow, Clear Creek region, Burnet County. Spiller mine, 

 Mason County. 

 Pyroxene. Iron-calcium -magnesium silicate. 



Spring Creek region, Burnet County. Miller mine, Llano County. 

 Quartz. Silica. 



Occurs white and smoky, amorphous and crystalline, twined and 

 with inclusions, at Barringer Hill, Llano County. White and rose 

 quartz in different parts of Llano County, amethystine in Gillespie 

 County, and in various rock forms. A very abundant vein mineral in 

 our region. 

 Saccharite. (Andesite var.) 



Right bank of Little Llano Creek, below Lone Grove, Llano County. 

 Samarskite. Uranium-ferrous-yttrium-magnesium-calcium columbate and 

 tungstate. 



Barringer Hill, Llano County (upon authority of Dr. Edgar Ever- 

 hart, University of Texas, Austin). 

 Serpentine. Hydrous-magnesium silicate. 



King Mountains, Llano County. Near Long Mountain, Llano County. 

 Gillespie County. 

 Silver. 



In Galena and in Tetrahedrite and other copper ores in Llano County. 

 Steatite. See Talc. 



