28 



MINERALOGY. 



constitute more than three fourths of the whole mass. A 

 single handful will contain specimens of every shade, black, 

 blue, violet, scarlet, rose, orange, amber yellow, wine 

 yellow, brown, and %'hite. Many retain their original 

 crystaline forms, some have the fundamental form of the 

 species, a perfect octahedron ; but many others have some 

 of the secondary forms, among which it is not uncommon 

 to see twin crystals with three re-entering angles, formpd 

 by two segments of the tetrahedron truncated on the 

 angles, and joined together by their bases. 



COMMON SERPENTINE. 



Dr. Heifer found serpentine on the islands of the Mergui 

 Archipelago, and Dr. Morton picked up a boulder near 

 Amherst, containing a small vein of common serpentine ; 

 which indicate its existence in the Provinces, although no 

 definite locality where it exists, is known. 



PRECIOUS SERPENTINE. 



Precious serpentine exists int he Ilookhoong valley, north- 

 west of Ava, whence it is exported to China, and brought 

 into the southern parts of the empire, but it has not yet 

 been discovered in these provinces. 



ZIRCON. 



Some of the best of the Ceylon jewels are probably 

 zircon, the pale variety of which supplies the diamonds 

 used in the jeweling of watches ; and Jameson savs, it is 

 often sold as an inferior kind of diamond. 



BERYL. 



Beryls are found in the sands of the Irrawaddy ; and 

 may probably be found in some of the rivers, that descend 

 From the granite mountains in these provinces. 



8S. 



