70 
A SYSTEM OF 
they may be diflmguifhed from other flints, 
except that they may be more eafily melted in 
the fire , and this quality perhaps may proceed 
from fome heterogeneous mixture, probably 
of iron. 
1, Pure jafper, Jafpis pur us. 
Which by no means yet known can be 
decompounded. 
a. Green with red fpecks or dots, the 
Heliotrope^ or blood-flone, from Egypt* 
h. Green, from Bohenaia. 
c. Red, Diajpro roffo Italorum. 
d. Yellow. 
€. Red with yellow fpots and veins, 
pro florido of Sicily, Spain, and Con- 
ftantinople. 
/. Black, from Finland, and Neflcott, 
in the province of Jemtland, 
SECT. LXW 
2. Jafper containing iron, Jcifpis martialisy 
Simple. 
A. Coarfe grained. 
a. Red and reddifli brown. Simple^ from 
the Hungarian gold mines. 
B. Steel grained, or fine grained. 
a. Reddifh brown, from Altenberg, in 
Saxony ^ looks like the red ochre or 
chalk ufed for drawing, and has par- 
tition veins, v/hich are undiious to the 
touch, like a fine clay, and opher like 
kinds. 
C. Of a foIH. and fhining texture, |ike a 
Hag. 
• y. Liver-coloured, and 
y. Deep red. Both thefe are found at 
