Chapter III

DESCRIPTIVE LIST OF USEFUL MINERALS.--The Gems--Precious Metals--Valuable Ores and Useful Minerals of the United States from Agate to Zinc--Their Distinguishing Characters, Uses and Localities--A Mineralogy for Miners--Agate--Alum--Amethyst--Anthracite--Antimony Ore--Asbestus--Asphaltum--Azurite--Baryta--Bituminous Coal--Blende--Bog Iron Ore--Brittle Silver Ore--Brown Coal--Calamine--Cannel Coal--Carnelian--Celestine--Cerussite--Chromic Iron--Cinnabar--Cobalt Pyrites--Copper--Copper Glance--Copper Nickel--Copper Pyrites--Diamond--Emery--Fluor Spar--Franklinite--Galena--Garnet--Gold--Graphite--Gray Copper Ore--Gypsum--Horn Silver--Iron Pyrites--Jasper--Kaolin--Lenticular Iron Ore--Limonite--Magnetic Iron Ore--Magnetic Pyrites--Malachite--Manganese Spar--Marble--Mica--Micaceous Iron Ore--Nitre--Oxyd of Manganese--Platinum--Red Copper Ore--Red Hematite--Red Silver Ore--Rensselaerite--Rock Crystal--Rock Salt--Rutile--Serpentine--Silicate of Copper--Silver--Silver Glance--Smaltine--Smithsonite--Spathic Iron--Specular Iron--Spinel Ruby--Steatite--Strontianite--Sulphur--Tin Ore--Topaz--Tourmaline--Variegated Copper Ore--Wad--Willemite--Zincite.....20

CHAPTER IV.

PROSPECTING FOR DIAMONDS, GOLD, SILVER, COPPER, LEAD AND IRON.--Mineral Riches, how Discovered--Indications--Searching for Diamonds, and how to Distinguish them--Paying Localities of Gold--“Fool’s Gold”--Prospecting for Silver and Copper--Where to Look for Lead and Iron.....81

CHAPTER V.

ASSAY OF ORES.--When an Ore will Pay--Washing for Gold and Platinum--How to Assay Gold in the Simplest Way--To Test any Rock for Gold and Silver--To Find the Purity of Gold--To Detect and Assay Silver Ores--Assay of Copper, Iron, Zinc, Tin and Lead Ores-Ready Method of Testing Graphite.....92

CHAPTER VI.

MINERAL SPRINGS.--What are Mineral Springs--General Location--Gas Springs--Iron Springs--Sulphur Springs--Alum Springs--Epsom Springs--Salt Springs--Warm Springs--Artesian Wells and Oil Wells, and Where to Bore for Them.....105

CHAPTER VII.

ARTIFICIAL JEWELRY--HOW MADE AND HOW DETECTED.--Mock Diamonds--“Paris Brilliants”--The Manufacture of Pastes--False Ruby, Topaz, Sapphire, Emerald and Carnelian--How to Distinguish True and False Gems--Imitation Pearl and Coral--Artificial Gold--List of Precious Stones.....114

CHAPTER VIII.

DISCOVERY OF GOLD IN CALIFORNIA.....127