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INDEX
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Able, Sir F., closed vessel experiments, 122
Absorption spectrum of diamond, 101
Aliwal North, 6
Alluvial deposits of diamonds, 9
Amygdaloidal trap, 10
Arizona meteor, 136
Arkansas, diamonds in, 2
Ash of diamond, 82, 89
Augite, 20
Automatic diamond collector, 56
Barytes, 71
density of, 93 Basalt, 15 Basutos, 12, 39 Bechuanas, 12, 39 Beryl, density of, 93
refractive index of, 103 Biotite, 20
Blackening of diamonds, 98 Blue ground, 10, 47
--------diamantiferous, 18, 19
Boart, 81 ,
combustion temperature of, 90
density of, 93 Boiling-point of carbon, 110 Bonney, Rev. Professor, 67 Boyle on the diamond, 100 Brazil, diamonds in, 4
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Breakwater, Cape Town, 36 Breccia, diamantiferous, 19 Brilliant cut diamond, 102 British Association in South
Africa, 7 British Guiana, diamonds
in, 4 Bronzite, 20, 71
hydrated, 19 Bultfontein Mine, 14 --------characteristics of diamond from, 64
Bursting of diamonds, 105
Calcite, 20, 97 California, diamonds in, 3 Canada balsam, refractive
index of, 103 Canyon Diablo meteorite,
136 Cape Colony, 5 Cape Town, 5 Carat, equivalent in grains,
69 Carbon, boiling and melting
point of, 110
combustion temperature of, 90
critical point of, 110
density of, 93
dissolved in iron, 116
volatilisation of, 115 Carbonado, 81
density of, 93
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141
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