PRECIOUS STONES 347 



or reddish. It has long been a favorite semiprecious stone 

 in Europe and the east, but large pieces are rare. Small round- 

 ed nodules of it are abundant at vjirious places in the west, 

 particularly in Wyoming. In 1893 large masses were found 

 near Hartville, Wyo., occurring in a vein 8 or 10 inches thick 

 in limestone. Sla])s of two or three feet in length were taken 

 out. The translucent white slabs, with moss-like markings 

 in black, are very beautiful. 



Two other localities in which moss agate has been found 

 are reported in Wyoming, one 47 miles and the other 75 miles 

 northwest of Cheyenne. No important developments, how- 

 ever, appear to have been made at these points. 



