404 
GARNET. 
neighbourhood of Barege; Rome de 1’ Isle found 
them in the diamond mines of Brasil ; and Brogniart 
tells us that they have been discovered in a volcanic 
rock near Vesuvius, and in the basaltes of Bohemia. 
When garnets are perfectly transparent, and hard 
enough to bear a fine polish, the lapidaries cut them 
into facets to be employed as jewels. At Meronitz 
and Trziblitz in Bohemia, there are places where 
they work the garnets which are found in their 
neighbourhood. There are work-shops also at Fri- 
burg in Brisgaw, for the garnets which are collected 
from several of the Swiss mountains. 
The impure garnets are used to advantage as a 
flux when they are found near iron-mines, as they 
not only facilitate the fusion of that metal, but add 
something to the mass by contributing the portion 
of iron which generally enters into their composition. 
The quantity indeed is sometimes so great, that they 
have been said to yield forty pounds in the hundred 
weight, and consequently worth smelting alone for 
the sake of their produce. 
