[ 5°4 1 
The Amethyjl is of a deep Purple, tranfparent and 
lively. 
There were fome other Species of Stones engraved 
upon by the Romans'* but rarely before the latter 
Times of the Empire, when the’ Art itfelf was greatly 
upon the Decline. 
All the before-mention'd Sorts of Stones are faid 
to have been of the Produce of Egypt, or of the 
Eajl-Indies \ and to have been brought from the 
Borders of the Nile, or of the Ganges. 
Here follows a general Table of what are ufually 
Called Precious Stones. 
The Beryl, is red, yellow, or white. 
The Rlafm, is green. 
The Jacinth, of a deep tawny red. 
The Chryfolite of a light grafs green. 
The Cryfial, or Oriental Eebble, of a filverilh 
white. 
The Garnet, of a deep red Claret- colour. 
The Arnethyjl, purple. 
The Tiiamond, white. 
The Ruby* red or crimfon-colour'd. 
The Emerald, of a deep Green. 
The Aqua marina, of a bluifh Sea-green, like 
Sea-Water. 
The Topaz , of a ripe Citron-yellow. 
The Sapphire , of a deep Sky-blue, or of a filver 
white. 
The Cornelian , red or white. 
The Opal, white and changeable. 
The Vermilion-Stone, is more tawny than the 
Jacinth . 
All 
