Mineralogy and Geology. 103 
The specimens analyzed were procured from Dr. Krantz of Bonn. 
The color of this species is orange yellow and its fresh fracture has 
the resinous lustre and general appearance of the colophonite of Nor- 
way. Its density is higher than that of any other silicate at present 
are the same, and that the former must be struck from the list of elements. 
[It is probable that orangite is identical with thorite: but in the ab- 
Sence of the details of Damour’s analysis we can only give the form- 
II, Mrneratogy anp Gerotocy. 
1. Mines of Sulphurets of Arsenic and Sulphur in Koordistan, 
(communicated by Prof. O. P. Hvsparp.)—In vol. iii of this Journal 
é J 
“et &e., in Koordistan, ores, which purchased in the market of 
a Rese Persia, and in the bazaars of Con antinople. D ht of 
. “ We started from Gawar, with the bishop of Gawar for our guide, 
Kg — direction of the mines, which are between Bashkullab and Jula- 
ugh a very n 
about two hours from the river reached the little village of Nestorians, 
called Goranis. This is on the mountain side, facing the east, and the 
ines are on the same mountain, only ten minutes walk from the village. 
