pratt.] CORUNDUM IN NORTH CAROLINA. 61 
phia, Pa., lias recently been organized to work the deposits on the 
Scaly Mountain and Foster tracts. The only mining that has thus 
far been done consists of an open cut extending 35 feet on the band 
of corundum-bearing quartz-schist. About 1,000 tons of ore have 
been taken out, a small portion of which has been crushed and cleaned. 
The point at which mining was begun is on the southwestern slopes 
of Scaly Mountain at an elevation of nearly 4,500 feet. The crushing 
plant has been erected close to the cut. The cleaning mill is about 
2,()()() feet Lower on Scaly Mountain, the crushed ore being conveyed 
thither in a flume. 
No definite method of cleaning has as yet been decided upon. 
Experiments have been made with jigs and a Bartlett table, but they 
have not proved very satisfactory. The garnet and magnetite in the 
ore are to be separated by the electro-magnet. No corundum has as 
yet been cleaned for the market. 
JACKSON COUNTY. 
Perhaps the most important corundum locality in this county is in 
the extreme southeastern portion, in the vicinity of Sapphire, extend- 
ing over into the adjoining county, Transylvania. In this section 
there is ;i series of about :><> outcrops of peridotite, which extend in a 
general northeast-southwest direction. All these outcrops are small, 
and corundum has been found associated with many of them. The 
location and relative size of the Larger of these outcrops and the 
places where corundum has been mined are represented on the map, 
fig. 11. .Most, of this has been a1 the Bad Creek and Socrates mines, 
but the greater part of the work done at any of them has been in the 
nat ure of prospecting. 
At the Burnt Rock mine, which is Located about 5 miles northeast 
of Sapphire, all the mining has been done within the peridotite for- 
mation, and about 10,000 to 12,000 pounds of corundum have been 
taken out. It is of good quality and occurs in white crystals and 
knotty nodules. The ore is i'vin* from garnet and can be readily 
cleaned. Prom the amount of work done here the indications are 
that there is a- considerable quantity of good corundum associated 
with the peridotite near its contact with the gneiss. The mining at 
the Brockton mine was also within the peridotite, and about the same 
amount of corundum was taken out as at the Burnt Rock mine. The 
corundum occurs in dull-gray crystals, which are easily cleaned and 
separated from the gangue. These two mines are in Transylvania 
County. Just below this mine, on the slopes of Poplar Ridge, a vein 
of corundum was exj)osed in October, 1900, by workmen who we're 
making a new road. The corundum is massive, and gives good indi- 
cations of occurring in quantity. 
The little work that was done at the Sapphire mine show^s a consid- 
erable quantity of white and gray corundum, often speckled with blue, 
