MINERALOGY. 
Z47 
SECT. CCLXV. 
.£• The ^elgflen of the Swedes. Lapis olla~ 
ris, Saxum compojitum fteatite et mica, 
a. Light grey, from Fahlun, and alfo 
Byxberget at Norberke. 
1. Whitifli yellow, from Sikfioberget in 
Norberke. 
Dark grey, from Riddarfhyttan. 
Dark green, from Salviflo in the parifli 
of Tamela in Finland. 
This is employed with great advan- 
tage to build fire-places and furnaces,, 
&c. and when it is flaty, the extremi- 
ties of the fiirata mull be turned tov/ards 
the fire. 
SECT. CCLXVL 
F. Porphyry, Porphy rites. Italorum Porfido.. 
Saxum compqfitum jafpide et feltfpata^ inter- 
dum mica et bafalte* 
a. Its colour is green, with light green 
feltfpat, Serpentina verde antico. It is 
faid to have been brought from Egypt 
to Rome, from which latter place the 
fpecimens of it now come. 
h. Deep red, with white feltfpat, from 
Italy, and Egern in Norway. 
c. Black, with white and red feltfpat, from 
Klitten, in the parifh of Eifdalen in Da- 
iarne. 
d. Reddifh brown, with light-red and 
white feltfpat, from Hykieberget in Eif- 
dalen, and Guftavftrom, in the parifii of 
Gofborn in the province of Wermeland, 
R 4 Dark 
