340 GEORGE F. KUNZ 



far apart, were found pieces up to 50 pounds in weight, and 

 two very large crystals, of 188 and 285 pounds, respectively. 

 Another find in North Carolina was reported in 1896, from 

 Elkin, in Surry county, by Mr. R. M. Chatham, who described 

 crystals up to 40 pounds in weight. Some large crystals are 

 also known to have been found in South Carolina, and it is 

 probable that much rock crystal adapted for use in the arts 

 exists in the mountain regions of the South. 



Colorado has furnished some fine material, especially 

 that from Mt. Antero, Chaffee county. A polished ball, six 

 inches in diameter from the summit of this mountain was ex- 

 hibited at the Columbian exposition. 



A find of considerable quantity was reported in 1896, at 

 Cheyenne pass, Wyoming, about 18 miles west of Cheyenne 

 city, but no development at that point appears to have been 

 undertaken. 



The quartz crystals of Hot Springs, Ark., have been known 

 for many years and furnish a constant source of business to 

 the farmers of the surrounding country, who collect them and 

 bring them in by the wagon load to sell to local dealers and 

 to tourists. These crystals are not large enough to yield art 

 material, but they are beautiful as specimens, either as single 

 crystals or more frequently in groups. It is estimated that 

 in one year no less than 15,000 pounds were gathered in 

 Montgomery, Saline, and Garland counties. 



Among the colored varieties, besides amethyst, of crys- 

 talline quartz suitable for use as precious or semiprecious stones, 

 two are important — smoky quartz and rose quartz. Both 

 are found at various points in the United States and have been 

 mined more or less during the past ten years, although there 

 is no large or continuous supply. 



The most noted place in which smoky quartz occurs is 

 at and near Pikes Peak, Colorado, where it is abundant in 

 fine crystals, in a coarse granite, associated with the beau- 

 tiful crystals of green feldspar (amazon stone), for which that 

 locality is famous. It is found also at Mt. Antero, in Colo- 

 rado, where the smoky quartz obtained in 1891 yielded one of 

 the finest faceted stones in the world, measuring 3^ inches in 

 length. Much of the material from Pikes Peak is sent abroad 



