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Ch. 7: Quartz Group - Opal, Rock Crystals, Amethysts, Rose Quartz, Agate, etc.

Ch. 7: Quartz Group - Opal, Rock Crystals, Amethysts, Rose Quartz, Agate, etc. Page of 364 Ch. 7: Quartz Group - Opal, Rock Crystals, Amethysts, Rose Quartz, Agate, etc. Text size:minus plus Restore normal size   Mail page  Print this page
       
     
 
128
GEMS AND PRECIOUS STONES IN THE
  
 
 
  
 
tals of quartz containing crystals of green spodumene (hid-denite) from Stony Point, N. C; inclosures of muscovite mica, that are green when viewed through the side of the prism, and green chlorite from several localities in Alexander County, N. C; and epidote in smoky quartz from Whitson's, near Sing Sing, Ν. Υ.
Agates are not produced in sufficient quantity in the United States to admit of exportation. Indeed, $2,000 would cover the annual production and sale here. Nearly all the agate jewelry sold in this country, as elsewhere throughout the world, comes from Oberstein and Idar, on the river Nahe in the duchy of Olden­burg, where the manufacture of such articles has flourished for over three centuries. The supplies of agate material are ob­tained principally from Uruguay and Brazil, in South America,
QUARTZ
  
 
 
  
 
 
 
 
  
 
and so extensive is this industry that it is not an uncommon thing to see in the tavern-yard of Idar great piles of from 10 to 100 tons of rough agate, varying in size from a few inches to several feet across, ready to be auctioned off in lots to suit pur­chasers. Prices usually range from five cents to several dollars a pound, the average probably not exceeding twenty-five cents. Agate, chalcedony, carnelian, sard, and other varieties of the agate group are found in great abundance at many places in the United States. At Agate Bay, Lake Superior, large numbers of small banded agates, often of a rich red color, are found. These are quite extensively cut. Often the natural pebbles are polished all over, then drilled at one end, and sold to tourists as charms, or they are placed in bottles of water, to show the markings to the best advantage, neatly arranged according to color and size, and sold as mementoes. Many fine agates, some of great beauty,
  
 
 
  
       
Ch. 7: Quartz Group - Opal, Rock Crystals, Amethysts, Rose Quartz, Agate, etc. Page of 364 Ch. 7: Quartz Group - Opal, Rock Crystals, Amethysts, Rose Quartz, Agate, etc.
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