| YEAR. | Gold. | Silver. |
| 1874 | $4,578,328 | $4,406,560 |
| 1875 | 5,382,098 | 4,237,841 |
| 1876 | 4,153,184 | 3,812,018 |
| 1877 | 3,687,192 | 3,774,240 |
| 1878 | 5,078,701 | 5,210,152 |
| 1879 | 3,899,125 | 5,977,300 |
INDEX.
[A], [B], [C], [D], [E], [F], [G], [H], [I], [J], [K], [L], [M], [N], [O], [P], [Q], [R], [S], [T], [U], [V], [W], [Z]
Acid or alum springs, [109]
Agate, [20], [21]
localities, [21]
value, [20]
Alleghenies, [14]
Alum, [21]
localities, [21], [22]
springs, [109]
value, [21]
American Flat group, silver mines, [136]
Amethyst, [22]
false, how made, [117]
localities, [22]
value, [22]
Anthracite, [22], [23]
localities, [23]
value, [23]
Antimony ore, [23], [24]
localities, [23]
value, [23]
Artesian Wells, [111], [112]
Artificial gold, how made, [125]
jewelry, how made and detected, [114-125]
Asbestus, [24]
localities, [24]
value, [24]
Asphaltum, [24], [25]
localities, [25]
value, [25]
Assay of copper ore, [100-102]
gold ore, [95-98]
iron ore, [102]
lead ore, [103], [104]
ores, [92-104]
silver ore, [99], [100]
tin ore, [102], [103]
zinc ore, [102]
Atlantic coast, [14]
Azurite, [25]
localities, [25]
smelting, [101]
value, [25]
Baryta, localities, [26]
or heavy spar, [26]
value, [26]
Bidwell, John, [130-132]
Bituminous coal, [27]
localities, [27]
region, [14]
Blende, [27], [28]
localities, [28]
value, [28]
Blowpipe, [17]
Bog iron ore, [29]
localities, [29]
value, [29]
Boring, [83]
Brazil, diamonds in, [84]
Bristol stones, [114]
Brittle silver ore, [30]
localities, [30]
value, [30]
Brown coal, [30]
localities, [30]
value, [30]
Brown Hematite or Limonite, [56], [57]
Calamine, [31]
localities, [31]
value, [31]
California diamonds, [114]
discovery of gold in, [127-133]
Cannel coal, [31], [32]
localities, [32]
value, [32]
Cape May diamonds, [114]
Carbonated or gas spring, [106], [107]
Carnelian, [32]
false, how made, [117]
localities, [32]
value, [32]
Celestine, [32], [33]
localities, [33]
value, [33]
Cerussite, [33]
and Galena, reduction of, [103]
localities, [33]
value, [33]
Chalybeate or iron springs, [107], [108]
Chromic iron, [34]
localities, [34]
value, [34]
Cinabar, [34], [35]
localities, [35]
value, [35]
Clear Creek, Cal., gold in, [132]
Coal, anthracite, [22]
bituminous, [27]
brown, [30]
cannel, [31], [32]
Cobalt pyrites, [35]
localities, [33]
value, [35]
Coloma, Cal., discovery of gold there, [127]
Colorado silver lodes, [89]
Colors, distinction of minerals by, [12]
Comstock Lode, [135-137]
gold and silver produced from, [136], [137]
Connecticut river valley, [14]
Copper, [36]
glauce, [36]
localities, [36]
value, [36]
gray copper ore, assaying, [101]
localities, [36]
nickel, [37]
localities, [37]
value, [37]
ore, assay of, [100-102]
gray, [51]
red, [65]
red, assaying, [101]
variegated, [78]
ores, test for silver, [99]
testing, [100-102]
silver in, [101]
percentage of in ores, which will pay, [101]
pyrites, [37], [38], [90]
localities, [38]
smelting, [101]
value, [38]
searching for, [90]
seldom in new formations, [90]
silicate of, [70]
smelting, [101]
value, [36]
where found, [14], [90]
Corals, false, how made, [124]
Descriptive list of useful minerals, [20-80]
Diamond, [41]
estimation of the value of, [86]
imperfections of, [86]
localities, [41]
value, [41]
Diamonds, characteristics of, [85], [86]
colors of, [83]
finest, [84]
in Brazil, [84]
in their native state, [83]
mode of discovering in Brazil, [84]
prospecting for, [83-87]
where found, [87]
Directions for determining specimens by the key, [15-19]
Discovery of silver in Nevada, [134-137]
Effervescence in minerals, [12]
Eliason, Mr., [133]
Emerald, false, how made, [116]
to test, [118]
Emery, [41], [42]
localities, [42]
value, [42]
Epsom springs, [109], [110]
False amethyst, how made, [117]
carnelian, how made, [117]
corals, how made, [124]
False emerald, how made, [116]
opal, how made, [117]
pearls, how made, [124]
ruby, how made, [116]
sapphire, how made, [116]
topaz, how made, [116]
Feather river, Cal., gold in, [132]
Fluor spar, [42]
localities, [42]
value, [42]
Franklinite, [43]
localities, [43]
value, [43]
Galena, [43], [44]
and Cerussite, reduction of, [103]
localities, [44]
purest specimens poorest in silver, [91]
value, [43]
Garnet, [44], [45]
localities, [45]
the heaviest of gems, [118]
to test, [118]
value, [45]
Gas springs, [106], [107]
Gems, to test by weighing in water, [118]
true and false, how to distinguish, [117-124]
Glass, minerals which will not scratch, [16], [19]
minerals which will scratch, [15], [18]
Gold, [46-50]
and platinum, washing for, [94], [95]
and silver consumed in the arts in the United States, [137], [138]
and silver, production of the United States, [137], [138]
and silver where they abound, [14]
artificial, how made, [125]
bearing rock, [88]
bearing sands, [88]
extraction of, [93]
Hill group, silver mines, [136]
how distinguished, [89]
imitation, how to detect, [125]
in California, discovery of, [127-133]
in California, first announcement of discovery, [132]
in quartz rock, to find the amount of, [98]
localities, [46-50]
mine first worked in the United States, [133]
ore, assay of, [95-98]
searching for, [87-89]
substances mistaken for, [89]
testing any substance supposed to contain, [97]
to separate from silver, [97]
to test the purity of, [98]
where found, [87-89]
Granite regions, [14]
Graphite, [50], [51]
localities, [50], [51]
to test the purity of, [104]
value, [50]
Gravity, mode of determination of, [12]
Gray copper ore, [51]
localities, [51]
value, [51]
Gypsum, [14], [52]
localities, [52]
value, [52]
Heavy spar or baryta, [26]
Hematite, brown, [56], [57]
Horizontal beds, [82]
Horn silver, [53]
localities, [53]
value, [53]
Humphrey, Isaac, [128]
Indications for minerals, [81]
Irish Diamond, [114]
Iron, chromic, [34]
how it occurs, [94]
ore, [14]
assay of, [102]
bog, [29]
brown hematite, [56], [57]
lenticular, [56]
magnetic, [57], [58]
magnetic, found by the compass, [91]
micaceous, [62]
red hematite, [65], [66]
specular, [73], [74]
pyrites, [53], [54]
localities, [54]
value, [53], [54]
searching for, [91]
spathic, [73]
springs, [107], [108]
testing minerals for, [91]
Jackson, Captain Wm., [133]
Jasper, [54]
localities, [55]
value, [55]
Jewelry, artificial, how made and detected, [114-125]
Kaolin, [55], [56]
localities, [55]
value, [55]
Lead ore, assay of, [103], [104]
to detect silver in, [99]
searching for, [90]
veins, thickest, [91]
where found, [90]
Lenticular iron ore, [56]
localities, [56]
value, [56]
Limestone regions, [14]
Limonite or brown hematite, [56], [57]
localities, [57]
value, [57]
Magnesian springs, [109], [110]
Magnetic, [12]
iron ore, [57], [58]
found by the compass, [91]
localities, [58]
value, [58]
pyrites, [58], [59]
localities, [59]
value, [59]
Malachite, [59], [60], [101]
localities, [59], [60]
value, [59]
Manganese, oxyd of, [63], [64]
spar, [60]
localities, [60]
value, [60]
Marble, [60], [61]
localities, [61]
regions, [14]
Marshall, Jas. W., discovery of gold in California by, [127-131]
Metals, found near their source, [82]
how they occur, [94]
Mica, [61], [62]
localities, [62]
value, [62]
Micaceous iron ore, [62]
localities, [62]
value, [62]
Mineral riches, how discovered, [81]
springs, [105-112]
location of, [105]
no indications of ores, [83]
what are they, [105]
Minerals as a source of our nation’s wealth, [9]
descriptive list of, [20-80]
regions which offer best inducements to search for, [14]
sections of the United States, richest in, [14]
species in the United States, how many, [11]
specific gravity of, [12], [13]
useful in the United States, [11]
which will not scratch glass, [16], [19]
which will scratch glass [15], [18]
Mississippi Valley, [14]
Money in the rocks, [9]
Nickel, copper, [37]
Nitre, [63]
localities, [63]
value, [63]
Nodules, [82]
Ochres, [91]
Oil wells, [112], [113]
Opal, false, how made, [117]
the softest of colored gems, [118]
Opaque minerals, [12]
Ore on a hillside, indications of, [82]
veins generally vertical, [82]
when it will pay, [92]
Ores, assay of, [92-104]
minimum percentages of metal in which will pay, [93]
Oxyd of Manganese, [63], [64]
Pacific coast, [14]
Panning, [94], [95]
Paris brilliants, [114]
Pastes, composition of, [115]
Pearls, false, how made, [124]
Platinum, [64]
localities, [64]
value, [64]
washing for, [94], [95]
Pockets, [82]
Precious stones, color and order of hardness, [126]
Prospecting for diamonds, [83-87]
Pyrites, iron, [53], [54]
cobalt, [35]
copper, [37], [38], [90]
magnetic, [58], [59]
testing for gold, [96]
yield of gold by, [97]
Quartz mining in California, commencement of, [133]
ores, yield of, [96]
rock, to find the amount of gold in, [98]
testing for gold, [95], [96]
Quicksilver, use of in assaying, [96]
Reading, Pearson B., [131]
Read mine, first gold mine worked in United States, [133]
Red copper ore, [65]
localities, [65]
value, [65]
hematite, [65], [66]
localities, [66]
value, [65]
silver ore, [66]
localities, [66]
value, [66]
Rennselaerite, [67]
localities, [67]
value, [67]
River sand, worth working for gold, [98]
Rock crystal, [67]
localities, [67]
value, [67]
salt, [68]
localities, [68]
suspected of containing silver, treatment of, [89]
Rocky mountains, [14]
Ruby, characteristics of, [85]
false, how made, [116]
spinel, [74]
to test, [118], [123]
Russia, gold how obtained in, [94]
Rutile, [68]
localities, [68]
value, [68]
Saline or salt springs, [109], [110]
Salt springs, [110]
Sapphire, false, how made, [116]
the hardest of colored gems, [118]
to test, [118]
Searching for copper, [90]
diamonds, [83-87]
gold, [87-89]
iron, [91]
lead, [90]
silver, [89], [90]
Serpentine, [69]
localities, [69]
value, [69]
Shaft, cost of sinking, [83]
Silicate of copper, [70]
localities, [70]
smelting, [101]
value, [70]
Silver, [70], [71]
and gold, consumption in the arts in the United States, [137], [138]
and gold, production of the United States, [137], [138]
glance, [71]
localities, [71]
reducing, [100]
value, [71]
horn, [53]
in copper ores, [101]
in lead and copper ores, [99]
in lead ore, to detect, [99]
to estimate the proportion of, [99], [100]
in Nevada, [134-137]
localities, [70]
native gold in, [97]
ore, assay of, [99], [100]
brittle, [30]
red, [66]
ores, rich reduction of, [100]
pure easily recognized, [99]
searching for, [80], [90]
to test a globule of for gold, [97]
to test copper ores for, [99]
where found, [89]
Slate regions, [14]
Smaltine, [72]
localities, [72]
value, [72]
Smithsonite, [72]
localities, [72]
value, [72]
Spar manganese, [60]
Spathic iron, [73]
localities, [73]
value, [73]
Specific gravity, mode of determination of, [12], [13]
Specular iron ore, [73], [74]
localities, [74]
value, [74]
Spinel ruby, [74]
localities, [74]
value, [74]
Steatite, [75]
localities, [75]
value, [75]
Stones, precious, color and order of hardness, [126]
Strass for making false jewels, [115]
Strontianite, [75], [76]
localities, [76]
value, [76]
Sulphur, [76]
localities, [76]
springs, [108], [109]
Testing minerals, [15-19]
Thermal springs, [110], [111]
Tin ore, [76], [77]
assay of, [102], [103]
localities, [77]
value, [76]
presence of, testing for, [103]
Topaz, [77]
characteristics of, [85]
false, how made, [116]
localities, [77]
to test, [118], [120], [123]
value, [77]
Tourmaline, [77]
localities, [77]
to test, [123]
value, [77]
Translucent minerals, [12]
Trap regions, [14]
True and false gems, how to distinguish, [117-124]
United States, consumption of gold and silver in the arts, [137], [138]
gold and silver statistics of, [137], [138]
Useful minerals, descriptive list of, [20-80]
in the United States [11]
Valuable minerals disguised, [10]
Variegated copper ore, [78]
localities, [78]
value, [78]
Veins, lodes and beds most valuable, [82]
Virginia group, silver mines, [136]
Wad, [78], [79]
localities, [79]
value, [78]
Warm springs, [110], [111]
Washing for gold and platinum, [94], [95]
Washoe lake, silver mines near, [134]
Wells, artesian, [111], [112]
Willemite, [79]
localities, [79]
value, [79]
Zincite, [79], [80]
localities, [80]
value, [79]
Zinc ore, assay of, [102]
FOOTNOTES:
[1] The useful rocks, as granite, slate, sandstone, water-lime, etc., are not included. By “granite region” is meant one having rocks like New England, and therefore unlike Western New York or Illinois.
[2] That is, they are not so easily cut with a knife; they do not necessarily scratch marble.
[3] Only the best known localities in the United States are given. For these we are indebted mainly to Professor Dana’s great work on Mineralogy.
[4] From Simonin’s “Underground Life,” page 346.