id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
45287	Bramble, Charles A.	The A B C of Mining: A Handbook for Prospectors			.txt	text/plain	41170	2786	78	as gold found is to Ans. About 13 cubic feet of quartz weigh a ton before being disturbed; when Much gold is derived from copper and iron pyrites, and silver gold can be moved by water accounts for the value of the deposits given the rocks by an ore containing water, quartz, nickel and below, and this is especially true of gold and silver ores. To test an ore for gold, take a pound of it, crush in mortar and pass detecting minute quantities of gold in rocks, ore tailings, etc. basin of water; heat the bottom of the tube containing the ore and Drop a little powdered ore in a test tube; add nitric acid; dilute valuable in the case of copper ore, as little as 1 per cent. minerals are generally the ores of lead, zinc, and carbonate of iron. great specific gravity of gold as compared with water and rock.	./cache/45287.txt	./txt/45287.txt