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As word leaked out in 1848 about gold in the Sierra Nevada foothills, early-day entrepreneur Sam Brannan cornered the California market on pans, picks and shovels. Without lifting a finger to do any gold mining of his own, he became California’s first millionaire by catering to the needs of the miners.
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www.sierrafoothillmagazine.com/goldmethods.html
www.sierrafoothillmagazine.com/goldmethods.html
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TODAY, MODERN MINING METHODS REQUIRE PRECISE ENGINEERING, DESIGN, MODERN EQUIPMENT AND SKILLED PROFESSIONALS TO PRODUCE PRECIOUS METALS WITHOUT HARMING THE ENVIRONMENT WHILE KEEPING COSTS IN LINE TO MAKE IT A PROFITABLE BUSINESS. ... Gold Mining Page...
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mine-engineer.com/mining/mine3.htm
mine-engineer.com/mining/mine3.htm
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Hard rock mining is when veins of gold found are in rocks. A pick ax is used to break the rock apart and get the gold. The most common rock gold was found in was quartz. Later large companies dug deep tunnels into the land looking for gold ... more about mining methods...
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www.nhusd.k12.ca.us/Pioneer/pages/classrooms/FourthGrad...
www.nhusd.k12.ca.us/Pioneer/pages/classrooms/FourthGrade/4thGradeGold/pages/Mining.html
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Mining - Wikipedia, the free encyclopedia
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Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, vein or (coal) seam. Materials recovered by mining include base metals, precious ...
en.wikipedia.org/wiki/Mining
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Before describing the modes of mining at present generally adopted, it will not be amiss to state the methods of obtaining the gold in the “Fall of ‘49 and the Spring of ‘50.” It was not until about 1852 that what has become known as hydraulic mining was begun.
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www.sfmuseum.org/hist9/turrillgold.html
www.sfmuseum.org/hist9/turrillgold.html
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California Indians and the Gold Rush ... The Story of the California Gold Rush. Aladdin. McMorrow, Catherine. 1996. Gold Fever! Random House. Rawls, James J. 1992. Dame Shirley and the Gold Rush. Raintree Books. Sherrow, Vicky. 1998. Life During the Gold Rush.
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www.huntington.org/Education/GoldRush/game/anna_links.h...
www.huntington.org/Education/GoldRush/game/anna_links.htm
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Gold mining was rough, physical work. ... Riffle or sluice boxes were the main methods of recovering gold. Nicknamed Long Toms, these were long, terraced wooden boxes, over which gold-bearing gravel was washed. Each step of the box had a lip that trapped the heavier gold and allowed the lighter materials to wash away.
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www.teara.govt.nz/en/gold-and-gold-mining/7
www.teara.govt.nz/en/gold-and-gold-mining/7
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One of the most commonly used methods for determining the gold and silver content of mineralized rocks is the fire assay. ... The content of recoverable free gold in placer deposits is determined by the free gold assay method, which involves amalgamation of gold-bearing concentrate collected by dredging, hydraulic mining,
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pubs.usgs.gov/gip/prospect1/goldgip.html
pubs.usgs.gov/gip/prospect1/goldgip.html
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MINING APPLIANCES AND METHODS ... The clean gravel is then run through a "cradle, "long Tom," or "sluice," and the gold saved. This, of course, is the simplest form of gold mining. In the great alluvial mines other and more intricate appliances are used but the principle of extraction is the same.
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www.lateralhunting.com/gold/gg12.html
www.lateralhunting.com/gold/gg12.html
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