OBSERVATIONS. 2$ 
weighs three quarters, the other one 
pound and a half} but there has been 
found native copper in lumps of from 
twenty to thirty pounds in weight. How 
rich the mines of Huel Virgin are, may 
be perceived in general from this, that 
only in the month of March, 1785, 
they produced 1400 tons of rich copper- 
ore ; each ton containing twenty hundred 
weight. 
I poflefs from the fame place, as alio 
from Carrarach, which is contiguous to 
Huel Virgin, and which is no lefs rich, 
a fpecimen of cryftallized native copper, 
with tranfparent vitreous copper ore, of a 
ruby colour, cryftallized in odtoedres : but 
this fine red cryftallized vitreous copper 
ore begins to be fcarce. 
Near to the copper vein at Carrarach 
is found compact native copper, of a 
fpherical form, in lumps, which either is 
ftill metallic, or is beginning to be trans¬ 
formed into red copper-glafs, imbedded 
in depayed granite. 
Native 
