Fluor Spar, &¢. in Ohio. 53 
and a few miles below where the Wabash joins the Ohio. 
The fluor forms the gangue of a lead vein, and we have pieces 
in which the lead and fluor are intimately blended. ‘The lead 
ore is the common galena, or sulphuret, with a broad foliated, 
or laminated fracture, and a high degree of metallic splendour. 
We reduced it to the metallic state, and it yielded a large pro- 
duct of very soft lead. On dissolving it in uitric acid, and ap- 
plying the muriatic acid till precipitation ceased, the precipi- 
tate formed was all re-dissolved by boiling water; nor, when 
submitted to cupellation, did the lead leave any thing upon the 
cupel. We therefore conclude that it contained no appreciable 
_ quantity of silver. Itis said to be eee abundant at ‘Shawnee 
Town as 
The fluor spar is very beautiful. line Sal ours, chiefly, \ ery 
deep purple and violet ; but still highly translucent 5 ; one speci- 
men was entirely limpid. Both kinds, when thrown in coarse 
powder, on a red-hot shovel, in a dark place, phosphoresced, 
and the violet specimens very beautifully. Of the violet kind, 
we have a specimen nearly as large as a man’s fist, which is per- 
fectly pure and sound, and appears to have been a single crys- 
tal; the natural faces and angles were unfortunately obliterated 
by grinding on a common grindstone. We have others which 
are decidedly crystals of perfect regularity; cubes, and pas- 
Sages between the cube and octahedron. In some of the speci- 
mens, the disposition of colours, and the transmission of 3 light, 
are such as to show very clearly that the octahedron lies in the 
centre, as the nucleus or primitive form. 
The size and beauty of the specimens, and the reported 
abundance of this mineral near Shawnee Town, (provided 
there is no mistake in the case,) clearly entitle this to be con- 
sidered as the most interesting American locality of this beau- 
tiful mineral. Measures have been taken to investigate the 
subject more fully, and to obtain a supply of specimens. 
Quartz crystals appear to abound at the same place, besides 
various other minerals, 
