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INDEX. 
Page. 
Cyanite, corundum in 36-37 
Dalton, O., reference to 71 
Dana. J. D., cited 27,36,92 
Dana Bar, Mont., sapphires at... 47,82 
Delaware, corundum in . 80 
Democrat, N. C. , corundum at 84 
Diamond, hardness of 10 
Dobson Mountain, N.C., emery at ., 72 
Douglas County, (la., corundum in 80 
Dudley ville, Ala., corundum near — 79 
Dunite. See Peridotite. 
Dunite vein, cross section of 14,15 
open cut on. plate showing.. 58 
Dunite veins, plates showing 58,60,66 
Durrant, J., reference to 49 
Edman, J. A., cited 80 
Egypt mine, N.C., corundum at 15,84 
Eldorado Bay, Mont. , sapphires at 47, 82 
Elf, N. C,ruby corundum near 45 
sapphires near _ 47 
Elf mine.N. C, corundum at 84 
Ellijay Creek, N.C., corundum at 84 
Emerald Bar, Mont. , sapphires at . . 49, 82 
Emerson, B.K., cited 23,24 
quoted....,.- 19,26 
Emery, distribution of... 67-72 
in amphibolite - 23-26 
Energy, S. C, corundum at .._ 87 
Enstatite, corundum in 20 
Evans, A. , information furnished by 64 
Fairview mine, N.C., corundum at.. 72,84 
emery at 72 
Fishhawk Mountain , N. C. , corundum at . 84 
Poster mine, Ga., corundum at 60,65,80,84 
France, corundum in 92 
Franklin, N. C, emery near 72 
rubies near 40-44 
Franklin Furnace, N. J., corundum at 82 
Fremont, Pa., corundum at - 86 
French Bar, Mont., corundum at 29 30 
sapphire at _ 47,82 
Friendship, N.C., emery near _ 72 
Gaffney,S.C. corundum at 87 
Gainesville, Ga., corundum near 80 
Gallatin County, Mont., corundum in .. 30-31, 
66, 82 
Garnet, hardness of 10 
Gaston County, N. C, corundum in 84 
Genth,F.A.,cited 35,37.72 
Georgia, corundum in 6:3-05, 80-81 
peridotite rocks and corundum, locali- 
ties, map showing 54 
Glenville, N.C., corundum at 84 
Gneiss, contact between peridotite and, 
plate showing 64 
contact vein from peridotite to, cross 
section of 12-14 
corundum in... 33-34 
cross section of peridotite after intru- 
sion in 16 
vein between peridotite and, plate 
showing 56 
Grecian Archipelago, corundum in 91 
Grimshawe, C, reference to 45 
Grimshawe Gem Mine, N. C. , corundum at 45. 84 
Gross Ridge, N. C. , corundum in gneiss at . 33 34 
Habersham County, Ga. , corundum in . . . 81 
Page. 
Hamilton mine, Ga. , corundum at 81 
Hampton mine, N. C, corundum at_ 85 
Hanover, Ala. , corundum near 79 
Haskett mine, N.C., corundum at 84 
Haynie,C.C, reference to 85 
Heady, H., reference to 71 
Herbert mine, N. C. , corundum at 85 
Hills, R.C., cited 80 
Higdon mine, N. C. , corundum at 85 
Hiwassee,G a., corundum near , 80 
Hobson, S. S., reference to. 55 
Hog Creek mine, Ga., corundum at 81 
Holland, T.H., cited 89 
Holland , corundum in 93 
Hunters, N.C., corundum at.. 23 
Huntington, Mass., emery at 70,82 
In Situ Hill, N.C., rubies at 41 
India, corundum in _ 89-90 
Isbel mine, N.C., corundum at 85 
Johnson, C, reference to 49 
Judd,J.W.,cited. 90 
King.F.P., cited 65 
Kings Mountain, N. C. See Gaston 
County. 
Knuth, W., acknowledgments to 50 
reference to ■ 49,50 
Kunz,G.F., cited 29,47,52 
Lacroix, A., cited 92 
Laurel Creek, Ga., dunite vein at, plate 
showing 66 
opencutat, plate showing 04 
peridotite formation at, map showing 04 
peridotite formation at, plate showing 06 
Laurel Creek mine, Ga. , corundum at- 63-65,81 
Laurens, S. G. corundum at 87 
Lawson. A. C., cited 80 
Ledford.C, reference to 86 
Ledford, J., reference to 72 
Limestone, corundum in 36 
Litchfield, Conn., corundum near 36,80 
Louisa County, Va., corundum in 87 
Lucas, H. S., reference to ... 72 
Macia mine, Mass. , emery at 68 
Magpie Gulch, Mont. , sapphires at 47. 82 
Mann, W., reference to 72 
McCoy , Isaac, reference to 71 
Marshall, N.C., corundum near 85 
Maryland, corundum in... 81 
Mason Branch, N. C. , rubies near 40-44 
Massachusetts, corundum in 82 
emery in 67-70 
Melvin mine. Mass. .emery at 68 
Metropolitan Bar, Mont. . sapphires at 49, 82 
Mica-schist, corundum in 34-35 
Miller, W.G., cited 31,88,89 
Mincey mine, N. C. , corundum at 58, 85 
open cut at. plate showing 58 
ruby corundum at 45 
Mine Fork,N. C, corundum at 85 
Mineral Hill, Pa., corundum at 86 
Minette, basic, corundum in 28-29 
Mining corundum, methods of 72-74 
Missouri River bars, sapphire crystals 
from, figure showing 50 
sapphires in 47.82 
Moffitt.W., reference to 50 
Molengraff , cited 93 
