L ^9 ] 



its natural Appearance. This furprizing 

 Stone is not yet known to be produced 

 in any Country but China, though our 

 own Country has afforded Stones that, in 

 Tonne Degree, emulate its Qualities. 



We now proceed to make a few Re- 

 marks, or Obfervations, on the Nature 

 of the tranfparent Gems. Thefe are not 

 improbably fuppofed to take their feveral 

 Tinges, or Colours, from the predomi- 

 nant Influence of fome neighbouring 

 Mine, communicated in the fame Man- 

 ner, that beautiful blue is to the Turcois 

 in a Copper Mine. Thefe Gems are by 

 the Naturalifts, according to their Quali- 

 ties and Hardnefs, difpofed in the fol- 

 lowing Order. 



Aqua Marina^ Aque Marine, This is, 

 in all Probability, the Beryl of the An- 

 cients it took its modern Name from 

 its Colour, (a fine Sea green, inclined to 

 bluifh, refembling Sea Water) which it 

 receives from the Influence of Copper 

 and Iron Ore. . It is found id various 



Shapes; 



