378 



MINERALOGY 



garnet, and columbite, as at Haddam, Connecticut ; and found also 

 in granite at Saratoga, New York; at Norway, and Stoneham, 

 Maine. 



Alexandrite is a transparent variety from Takowayo in the 

 Urals in Russia, named for the Czar Alexander II. It is a gem of 

 great beauty, being a fine green by daylight, and in artificial light 

 changes to a raspberry-red. The cat's-eye is an opalescent variety 

 of chrysoberyl, the best specimens of which are obtained from 

 Ceylon. It has been used as a gem in the East from the earliest 

 times. 



