J. L. Smith—Corundum of North Carouna, ete. 185 
Andesite.—This mineral occurs mostly in a granular form. 
Its composition is— 
epee er Es SA ei Pe ea ce eae ee 64°12 
iehdina 2280 a Oe aes 24°20 
baa be See Pa Se eee 9°28 
ia) fosart Ree ee 2°80 
Geile of mons c ihc AG MEST 14 
The other minerals associated with this emery formation are 
magnetic oxide of 1 chrome iron ile, asbestus, talc, 
gnet ron, , rutile 
actinolite, black tourmaline, chalcedony, anthophyllite, spinel, 
albite and picrolite. 
On the existence of the Ruby and Sapphire in North Carolina 
and Montana Territory. 
_ The corundum locality that I have described in North Caro- 
lina furnishes masses of corundum from which small pieces can 
ound to consist principally of corundum ; they were like the 
rolled pebbles from the ruby localities in the Kast Indies, each 
one being a little crystal in itself, more or less abraded on the 
region of this territory on these bars considerable gold is found, 
it having been brought down the river and lodged there, an 
the bars are now being worked for the gold. The corundum 1s 
