142 CORUNDUM, ITS OCCURRENCE AND DISTRIBUTION. 
DELAWARE. 
Corundum has been found in this State in the serpentine rocks near 
the Pennsylvania border. The only locality definitely known is near 
Chandlers Hollow, in Newcastle County, about 2^ miles south of 
Concord, Delaware County, Pa. It has been found only in small 
quantity. 
GEORGIA. 
Acworth. — Seven miles southwest of Acworth, Cobb County, there 
is a large peridotite formation which is entirely within Paulding 
County. From a pit sunk within this formation about 1,000 pounds 
of corundum were taken out. It is of ]30or quality, but makes hand- 
some mineral specimens. 
Bell Creek mine. — This mine is 4 miles north of Hiawassee, ToAvns 
County, and the corundum, mostly of a pink color, occurs in peri- 
dotite. The work done consists of a pit 12 feet square by 12 feet 
deep. Only a small quantity of corundum was found. 
Caldwell. — On the property of Mr. R. J. Cook, of Caldwell, Union 
County, pieces of sapphire corundum weighing 10 pounds and up- 
ward have been picked uj) on the surface. (See }). 105.) 
Centmlhatchee. — At this place, which is in Heard County, grayish, 
white, and blue corundum has been found in a matrix of hornblende, 
which is associated with basic magnesian rocks. 
Douglas County. — Blue corundum in a pale-greenish cyanite. 
Foster' mine. — The corundum occurs in quartz-schist. (See p. 123.) 
Gaines r'dle. — Beautiful specimens of red corundum have been 
found in the i)eridotite formation 1 mile east of Cainesville, Hall 
County. 
Habersham County. — Corundum has been found as surface special 
mens at a number of localities in this county, and at one place in the 
peridotite formation. There have been no developments and there 
are no indications of any quantity. 
Hamilton m/me. — The corundum occurs in a peridotite formation 
about 5 miles north of Young Harris, Towns County. No large 
quantity has been found. 
Hiawassee. — Corundum has been picked up on the surface at a 
number of localities in the vicinity of HiaAvassee. Some of the corun- 
dum found has been of a ruby color and nearly transparent. See 
also Hog Creek mine. 
Hog Creek mine. — This mine is 2 miles a little south of west of 
Hiawassee, Towns County, but it lacks development. The corundum 
is associated with peridotite, and is pink, blue, and white. 
Laurel Creek mine. — In peridotite. (See p. 128.) 
Monroe. — Four and a half miles from Monroe, Walton County, on 
the farm of Mr. George W. Breedlove, black corundum has been 
