EMERALD. 
401 
lours, which in a gentle heat become colourless ; 
but white and opaque in a strong fire, without the 
least marks of fusion.” 
These stones are distinguished by the jewellers 
into two kinds, the oriental and occidental. True 
oriental emeralds are very scarce, and at present 
found only in the kingdom of Cambay. Those from 
the western continent, or occidental, are far more 
common ; and some are said to be found in Europe, 
principally in the duchy of Silesia in Germany. 
2 D 
vol. hi. 
