Table of ContentsGold DredgingGold Dredge Suction PumpsLadder-Bucket DredgesCrane and Bucket DredgesGold Saving ApparatusDisposal of Gold Dredge TailingsTreatment of Flat Inland PlacersAdvantages of Dredging for GoldDifficulties
Native gold always contains silver, which occurs in varying proportions, the colour becoming paler with the increase of silver. The finest native gold yet found
Dissemination of Gold.—The wide distribution of gold in minute quantities throughout the world was pointed out by W. E. Dubois, an Assayer in the United
To know what type of rock is gold associated with you must see that the minerals most common in placer deposits are platinum, iridosmine, magnetite,
The origin of mineral veins, including those in which gold is contained, has long been discussed by geologists. The old theory that the quartz of
To understand the Geographical Distribution of Gold and where is the most gold in the world you must start with the British Isles, where gold is
Gold is characterised chemically by an extreme indifference to the action of all bodies usually met with in nature. Its simpler compounds are formed with
Purple of Cassius was discovered by Cassius of Leyden in 1683. It contains gold and oxide of tin, and is used to colour glass and
The existence of auro-silicates is now admitted without dispute, and gold has for centuries been used to impart colour to glasses, the method used being
Sulphites of Gold, alkaline sulphites, or sulphur dioxide, which reduce gold trichloride easily, do not produce the same effect on a solution of an alkaline