C 63 9 ] 
1. A blackifh duff, feparable by a fine fleve. This 
was farther divided, by a magnetic bar, into two 
different fubftances : the part attracted, was of a 
fine fparkling black colour, much refembling the 
black fand from Virginia : the part not attracted 
was of a dark brownifh hue, with feveral bright 
molecula , which appear’d to be fragments of the 
grains of platina. 
2. Among the larger grains, feparated by a coarfe 
fieve, were obferv’d fundry irregular dark-colcur’d 
particles, fome blackifh, others with a caft of 
brownifh red, in appearance refembling fragments 
of emery or loadftone- Several were attracted, 
weakly, by the magnet. 
3. There were a few rough yellow particles, refem- 
bling gold, which upon farther examination they 
were found to be, tho’ probably not entirely free 
from platina. 
4. A few globules of quickfilver, containing gold, 
with fome particles of platina intermix’d and pretty 
flrongly adhering. 
5. Some fine tranfparent particles, probably fpar. 
6. A very few irregular particles, of a jet-black co- 
lour. Thefe broke eafily, and look’d like the finer 
kinds of pitcoal. Laid on a red-hot iron, they 
emitted a yellowifh fmoke, and fmelt like burning 
coal. 
Remarks. 1. It appears from the foregoing obfer- 
vations, that this mineral has not come to us in its 
native form j being, probably, taken out of the mines 
in large maffes, which have been broke, and treated 
with 
2 
