The Production of the Precious Metals: Or, Statistical Notices of the ...
The Production of the Precious Metals: Or, Statistical Notices of the ...
William P William Phipps Blake
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On the islands of Sado, off the northwest coast, there are extensive mines upon a large vein of mixed silver and gold ore, very closely resembling the best of the ore from the Comstock vein, Nevada. This locality has evidently furnished a large amount of the precious metals, but the facts regarding it are very jealously guarded by the Japanese. Some of the placer gold of Japan was represented in the miscellaneous collection of Japanese minerals at the Exposition. COCHIN-CHINA, INDIA, AND OTHEE ...COUNTEIES IN ASIA. Gold is reported to exist in the sands of the rivers of Cochin-China, and to be extremely pure, but the working of the mines was formerly ]>rohibited. THIBET. Gold exists in Thibet, but the mines are the exclusive property of the government. The total production was estimated by Jacob, in 1831, at certainly not over 10,000 ounces annually. INDIA. Over 12,000 persons are said to have formerly been engaged in gold washing in Assam, axid the production amounted to 30,000 ounces annu- ally.
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