26 MINERALOGY. 



BLUE SAPPHIRE. 



Blue sapphires are brought from Burmali, and Dr. Hei- 

 fer writing from Mergui says : "A Karen informed me, 

 there are precious blue stones to be had, which the Shans 

 collect and carry to Bangkok. He described the place as 

 eight days distant, and did not know whether it was Bri- 

 tish or Siamese." 



RED SAPPHIRE, Or ORIENTAL RUBY. 



The red sapphire, or ruby, is brought from Burmah, 

 where it is found with the common blue sapphire, probably 

 in the valley of the Salwen. The Burmese call it by the 

 same name that they do the precious garnet, and do not 

 appear to be always able to distinguish them. 



VIOLET SAPPHIRE. 



The \iolet sapphire, or Oriental amethyst; is found in 

 the same localities as the common sapphire. 



YELLOW SAPPHIRE. 



The most valuable topaz in Burmah, is the yellow sap- 

 phire, or Oriental topaz. 



g[Ococscpsu 



GREEN SAPPHIRE, or ORIENTAL EMERALD. 



A green gem is often teen for sale among the Burmese, 

 brought from Burmah, which Europeans usually call emer- 

 ald ; but it is probably a blue sapphire. The true emerald 

 may however be among them. 



0' 



CORUNDUM. 



Corundum pebbles are found in " the gem-sand of Ava 

 river ; " and they probably exist in the sands of some of 



