388 CENTRAL MINERAL REGION OF TEXAS. 



Microcline. Aluminum-ferric-magnesian-calcium-sodium-potassium silicate. 



Upper ford of Llano River, at Llano, Llano County. 

 Molybdenite. Molybdenum sulphide. 



Barringer Hill, Llano County. 

 Molybdite. Molybdenum oxide. 



Barringer Hill, Llano County. 

 Muscovite. Aluminum-potassium silicate. 



Mexican diggings, Babyhead Mountain, Llano County. Little Llano 

 Creek, below Lone Grove, Llano County. North of Lone Grove, Llano 

 County. Johnson Creek, Llano County. Near Smoothing Iron Moun- 

 tain, Llano County. North of Fly Gap, on road to Pontotoc, Mason 

 County. Head of Rocky Creek, east of Riley Mountains, Llano County. 

 Near Sandy Mountain Postoffice, Llano County. Many other localities. 

 Nivenite. (New mineral, discovered recently.) 



Barringer Hill, Llano County. 

 Ochre. (See Limonite.) 



Near Sutton's, Sand Creek, Llano County. 

 Oligoclase. Aluminum-calcium-sodium silicate. 



Capitol granite quarries, Burnet County (in granite). Little Llano 

 region, Llano County. 

 Opal. Silica. 



Long Mountain, Llano County (in grains in felsite porphyry). 

 Orthoclase. Aluminum -potassium silicate. 



Mexican diggings, Babyhead Mountain, Llano County. Capitol gran- 

 ite quarry, Burnet County. Headwaters Clear Creek, Burnet County. 

 Spring Creek region, Burnet County (in granite). Shannon's quarries, 

 Burnet County (in quartz). Near Niggerhead Mountain, in Burnet 

 County. Clear Creek, near High Point, Burnet County. Hoover's 

 Valley, Burnet County. Long Mountain region, Llano County. Bar- 

 ringer Hill, Llano County. Little Llano Creek, Llano County. Hickory 

 Creek, Little Llano region, Llano County. Lockhart Mountain, Llano 

 County. Upper ford of Llano River, Llano, Llano County. Parker's 

 place, west of Llano, Llano County. Johnson Creek, Llano County. 

 Streeruwitz mine, Llano County. Cold Creek region, Llano County. 

 On Brady road, west of Bauman's, in Cold Creek region, Llano County. 

 Twin Mountains, Llano County. Christian Schneider's place, near Cas- 

 tell, Llano County. North of Fly Gap, Mason County. Kothman's 

 Water Gap, near Fleming, Mason County. West of Enchanted Rock, 

 Mason County. Nunneley's mine, Llano County. East of Dancer 

 Peak, Llano County. 



