Miscellaneous Notices in Mineralogy, Geology, §c. 229 
will accompany this letter. -_ four sided and terminat- 
: crystals* were furnished me by a ramble in Buncomb, 
. C. they scratch quartz, with dificulty. The onyx-like 
sailed specimen was found near the same place, by Col. 
Blanding or Mr. Poinsett, probably the latter. 
2. Confirmation of the genuineness of the locality of Ameri- 
can Corundum, mentioned p. 7 of this Volume. ract 
of a letter from Mr. John Dickson to the Editor, dated 
Charleston, March 9, 1821. 
As to the locality of the ne I thought it had aes 
noted. I think ae was Laurens District; at all events it w 
picked up by m ne if not in ait; ina Arg * 
which no igaologicdl or mineralogical specimens had ever 
een and which it could have reached only by o1 
of the usual val natural accidents which displace sloioci 
of all kinds, and leave them at greater or less distances 
from their »eds. Iam sure it is American and Carolinian. 
e to revisit the upper country in three or four 
weeks, and shall pay particular attention to this point, ak I 
am in hopes of mens: other specimens ae 
marked. Paha able then perhaps to ct any mis- 
takes I have’ or | former occasions. ‘My brother, Drs 
S. H. Dickson, will accompany me on i res wo ie 
“ft mm. 41..3,.43% a peat 
see ases—a four sided prea is set upon the prism, sometimes at 
both ends, and in such a manner. or, that th A sokhckametetied third 
correspond with ial di ge 
almost dh hh *s 0 A " 
a little resembling t if vesuvian. Te edges, sides week solid langle have regneat 
neatness and finish. They scratch quartz, carnelian, and 
stones, and even slightly impress beryl. ~The speci aaa 
completely infusible by the common blow-pipe, but tien 
Cleaveland, to tt 
hat | deg eepecnsicyened 
si meg a eee of poe 
cageay iompee i 
preys : 
ond two eighths o three eights of an inch inch in diameter. 
Saya Se eive Girther ¢ sienlon tr soe 
Beaune Fh es tect ee 
