82 CORUNDUM TN THE UNITED STATES. Lbuli.. 18U. 
MASSACHUSETTS. 
Chester. — -Emery in amphibolite. (See p. 07.) 
Huntington. — Emery in amphibolite. (See p. 70.) 
Pelham. — Corundum in saxonite. (See p. 19.) 
MONTANA. 
American Bar. — The lowest bar on the Missouri River on which 
sapphires have been found. (See p. 47.) 
Cottonwood Creek. — In the gravels of this creek greenish-colored 
sapphires have been found. (See p. 51.) 
Dana Bar. — A bar in the Missouri River, in the gravels of which 
sapphires have been found. (See p. 47.) 
Eldorado Bar. — Sapphires in the gravel. (See p. 47.) 
Emerald Bar. — The highest bar on the Missouri River in which 
sapphires have been found. (See p. 40.) 
French Bar. — Sapphires have been found in a small dike of andes- 
ite. (See p. 47.) 
Gallatin County. — Corundum in syenite. (See p. 66.) 
Magpie Gulch. — Pale-greenish sapphires have been found in the 
gravel. (See p. 47.) 
Metropolitan Bar. — Sapphires occur in the gravels. (See p. 49.) 
Missouri River bars. — In the various bars along the Missouri River, 
18 miles east and northeast of Helena, sapphires have been found in 
the gravel. (See p. 47.) 
Bock Creek. — All colors of sapphires are found in the gravel of this 
creek. (See p. 50.) 
Ruby Bar. — Sapphires occur in an andesite dike. (See p. 47.) 
Spokane Bar. — A bar of the Missouri River where the most mining 
has been done for sapphires that occur in the gravels. (See p. 48.) 
Yogo Gidch. — Blue sapphires occur in a dike of minette. (See p. 
52.) 
NEVADA. 
Silver Peak. — Corundum has been reported from near this place. 
NEW JERSEY. 
Franklin Furnace. — A small pocket of corundum has been found 
here associated with dolomitic limestone. 
Newton. — Blue and white corundum occurs in a whitish feldspar 
near the contact of the granitic rock and white limestone. 
Vernon. — Small pockets of corundum in limestone, but not in great 
quantities. (See p. 36. N 
NEW YORK. 
Amity. — Blue and white corundum has been found in the limestone 
near Amity and Warwick, Orange County. Does not occur in large 
quantity. 
