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searchaux" style="display:none">Devices that separate materials of different densities</div> <p><b>Jig concentrators</b> are devices used mainly in the <a href="/wiki/Mining_industry" class="mw-redirect" title="Mining industry">mining industry</a> for <a href="/wiki/Mineral_processing" title="Mineral processing">mineral processing</a>, to separate particles within the ore body, based on their <a href="/wiki/Specific_gravity" class="mw-redirect" title="Specific gravity">specific gravity</a> (<a href="/wiki/Relative_density" title="Relative density">relative density</a>).<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>The particles would usually be of a similar size, often crushed and screened prior to being fed over the <a href="/w/index.php?title=Jig_bed&action=edit&redlink=1" class="new" title="Jig bed (page does not exist)">jig bed</a>. There are many variations in design; however the basic principles are constant: The particles are introduced to the jig bed (usually a screen) where they are thrust upward by a pulsing water column or body, resulting in the particles being suspended within the water. As the pulse dissipates, the water level returns to its lower starting position and the particles once again settle on the jig bed. As the particles are exposed to <a href="/wiki/Gravitational_energy" title="Gravitational energy">gravitational energy</a> whilst in suspension within the water, those with a higher specific gravity (density) settle faster than those with a lower count, resulting in a concentration of material with higher density at the bottom, on the jig bed. The particles are now concentrated according to density and can be extracted from the jig bed separately. In the mining of most heavy minerals, the denser material would be the desired mineral and the rest would be discarded as floats (or <a href="/wiki/Tailings" title="Tailings">tailings</a>). </p><p>There are some minerals, notably <a href="/wiki/Coal" title="Coal">coal</a>, that are lighter (lower in density) than the surrounding rock and in such instances the process of extraction would work in reverse, i.e. the coal would settle on top with the rock below (on the jig bed). There are several designs and methods of extraction from the jig bed. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jig_concentrators&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Mineral_jig" title="Mineral jig">Mineral jig</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jig_concentrators&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dovemining.com/jig-concentrators/">"Jig concentrators, jig separators gold diamond gemstone recovery"</a>. <i>dovemining.com</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dovemining.com&rft.atitle=Jig+concentrators%2C+jig+separators+gold+diamond+gemstone+recovery&rft_id=https%3A%2F%2Fdovemining.com%2Fjig-concentrators%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJig+concentrators" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jig_concentrators&action=edit&section=3" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.freepatentsonline.com/2122039.html">Pulsating jig at Free Patents Online</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output 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title="Special:EditPage/Template:Extractive metallurgy"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Extractive_metallurgy" style="font-size:114%;margin:0 4em"><a href="/wiki/Extractive_metallurgy" title="Extractive metallurgy">Extractive metallurgy</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div><a href="/wiki/Metallurgical_assay" title="Metallurgical assay">Metallurgical assay</a> <a href="/wiki/Non-ferrous_extractive_metallurgy" title="Non-ferrous extractive metallurgy">Non-ferrous extractive metallurgy</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Mineral_processing" title="Mineral processing">Mineral processing</a><br /><small>(by physical means)</small></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Extraction</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Geological_survey" title="Geological survey">Geological survey</a></li> <li><a href="/wiki/Natural_resource" title="Natural resource">Natural resources</a></li> <li><a href="/wiki/Ore" title="Ore">Ore</a> <ul><li><a href="/wiki/Economic_geology" title="Economic geology">Economic geology</a></li> <li><a href="/wiki/Mineral" title="Mineral">Mineral</a></li> <li><a href="/wiki/Base_metal" title="Base metal">Base metal</a></li> <li><a href="/wiki/Precious_metal" title="Precious metal">Precious metal</a></li></ul></li> <li><a href="/wiki/Mining" title="Mining">Mining</a> <ul><li><a href="/wiki/Surface_mining" title="Surface mining">Surface</a></li> <li><a href="/wiki/Underground_mining_(hard_rock)" class="mw-redirect" title="Underground mining (hard rock)">Underground in hard rock</a></li> <li><a href="/wiki/Underground_mining_(soft_rock)" class="mw-redirect" title="Underground mining (soft rock)">Underground in soft rock</a></li></ul></li> <li><a href="/wiki/Recycling" title="Recycling">Recycling</a> <ul><li><a href="/wiki/Scrap" title="Scrap">Scrap</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Comminution" title="Comminution">Comminution</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Stamp_mill" title="Stamp mill">Stamp mill</a></li> <li><a href="/wiki/Arrastra" title="Arrastra">Arrastra</a></li> <li><a href="/wiki/Crusher" title="Crusher">Crusher</a> <ul><li><a href="/wiki/Mill_(grinding)#Autogenous_mill" title="Mill (grinding)">AG mill</a></li> <li><a href="/wiki/Mill_(grinding)#SAG_mill" title="Mill (grinding)">SAG mill</a></li> <li><a href="/wiki/Mill_(grinding)#Pebble_mill" title="Mill (grinding)">Pebble mill</a></li></ul></li> <li><a href="/wiki/Ball_mill" title="Ball mill">Ball mill</a> <ul><li><a href="/wiki/Mill_(grinding)#Rod_mill" title="Mill (grinding)">Rod mill</a></li> <li><a href="/wiki/IsaMill" title="IsaMill">IsaMill</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Sizing</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ore_sorting" class="mw-redirect" title="Ore sorting">Ore sorting</a></li> <li><a href="/wiki/Vanning" title="Vanning">Vanning</a></li> <li><a href="/wiki/Hydrocyclone" title="Hydrocyclone">Hydrocyclone</a></li> <li><a href="/wiki/Trommel_screen" title="Trommel screen">Trommel</a></li> <li><a href="/wiki/Cyclonic_separation" title="Cyclonic separation">Cyclonic separation</a></li> <li><a href="/wiki/Gyratory_equipment" title="Gyratory equipment">Gyratory equipment</a></li> <li><a href="/wiki/Mechanical_screening" title="Mechanical screening">Mechanical screening</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Ore_concentrate" title="Ore concentrate">Concentration</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Froth_flotation" title="Froth flotation">Froth flotation</a></li> <li><a href="/wiki/Jameson_cell" title="Jameson cell">Jameson cell</a></li> <li><a href="/wiki/Gold_panning" title="Gold panning">Panning</a></li> <li><a class="mw-selflink selflink">Jig concentrators</a></li> <li><a href="/wiki/Mineral_processing#Gravity_concentration" title="Mineral processing">Gravity Concentration</a></li> <li><a href="/wiki/Magnetic_separation" title="Magnetic separation">Magnetic separation</a> (<a href="/wiki/Magnetation_(iron_ore)" title="Magnetation (iron ore)">Magnetation</a>)</li> <li><a href="/wiki/Rocker_box" title="Rocker box">Rocker box</a></li> <li><a href="/wiki/Drywasher" title="Drywasher">Dry washing</a></li> <li><a href="/wiki/Buddle_pit" title="Buddle pit">Buddle pit</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pyrometallurgy" title="Pyrometallurgy">Pyrometallurgy</a><br /><small>(by heat)</small></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Smelting" title="Smelting">Smelting</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ferrous_metallurgy" title="Ferrous metallurgy">Iron smelting</a></li> <li><a href="/wiki/Lead_smelting" title="Lead smelting">Lead smelting</a></li> <li><a href="/wiki/Zinc_smelting" title="Zinc smelting">Zinc smelting</a></li> <li><a href="/wiki/Flash_smelting" title="Flash smelting">Flash smelting</a></li> <li><a href="/wiki/ISASMELT" title="ISASMELT">ISASMELT</a> furnace</li> <li><a href="/wiki/Refractory" title="Refractory">Refractory linings</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Refining_(metallurgy)" title="Refining (metallurgy)">Refining</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cupellation" title="Cupellation">Cupellation</a></li> <li><a href="/wiki/Parkes_process" title="Parkes process">Parkes process</a></li> <li><a href="/wiki/Bottom-blown_oxygen_converter" title="Bottom-blown oxygen converter">Bottom-blown oxygen converter</a></li> <li><a href="/wiki/Poling_(metallurgy)" title="Poling (metallurgy)">Poling</a></li> <li><a href="/wiki/IsaKidd_refining_technology" title="IsaKidd refining technology">IsaKidd process</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Calcination" title="Calcination">Calcination</a></li> <li><a href="/wiki/Roasting_(metallurgy)" title="Roasting (metallurgy)">Roasting</a></li> <li><a href="/wiki/Liquation" title="Liquation">Liquation</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrometallurgy" title="Hydrometallurgy">Hydrometallurgy</a><br /><small>(by aqueous solution)</small></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Leaching_(metallurgy)" title="Leaching (metallurgy)">Leaching</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lixiviant" title="Lixiviant">Lixiviant</a></li> <li><a href="/wiki/Heap_leaching" title="Heap leaching">Heap leaching</a></li> <li><a href="/wiki/Dump_leaching" title="Dump leaching">Dump leaching</a></li> <li><a href="/wiki/Tank_leaching" title="Tank leaching">Tank leaching</a></li> <li><a href="/wiki/In_situ_leach" title="In situ leach">In situ leaching</a></li> <li><a href="/wiki/Newbery%E2%80%93Vautin_chlorination_process" title="Newbery–Vautin chlorination process">Gold chlorination</a></li> <li><a href="/wiki/Gold_cyanidation" title="Gold cyanidation">Gold cyanidation</a></li> <li><a href="/wiki/Bayer_process" title="Bayer process">Bayer process</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Amalgam_(chemistry)" title="Amalgam (chemistry)">Amalgamation</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Patio_process" title="Patio process">Patio process</a></li> <li><a href="/wiki/Pan_amalgamation" title="Pan amalgamation">Pan amalgamation</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Electrometallurgy" title="Electrometallurgy">Electrometallurgy</a><br /><small>(by electricity)</small></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Electrolysis" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Electrolysis" title="Electrolysis">Electrolysis</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Electrowinning" title="Electrowinning">Electrowinning</a></li> <li><a href="/wiki/Hall%E2%80%93H%C3%A9roult_process" title="Hall–Héroult process">Hall–Héroult process</a></li> <li><a href="/wiki/Castner_process" title="Castner process">Castner process</a></li> <li><a href="/wiki/Downs_cell" title="Downs cell">Downs cell</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Co-products</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Tailings" title="Tailings">Tailings</a></li> <li><a href="/wiki/Gangue" title="Gangue">Gangue</a></li> <li><a href="/wiki/Slag" title="Slag">Slag</a></li> <li><a href="/wiki/Clinker_(waste)" title="Clinker (waste)">Clinker</a></li> <li><a href="/wiki/Chat_(mining)" title="Chat (mining)">Chat</a></li> <li><a href="/wiki/Bauxite_tailings" class="mw-redirect" title="Bauxite tailings">Red mud</a></li> <li><a href="/wiki/Stamp_sand" title="Stamp sand">Stamp sand</a></li></ul> </div></td></tr></tbody></table></div> <style data-mw-deduplicate="TemplateStyles:r1012311289">.mw-parser-output .asbox{position:relative;overflow:hidden}.mw-parser-output .asbox table{background:transparent}.mw-parser-output .asbox p{margin:0}.mw-parser-output .asbox p+p{margin-top:0.25em}.mw-parser-output .asbox-body{font-style:italic}.mw-parser-output .asbox-note{font-size:smaller}.mw-parser-output .asbox .navbar{position:absolute;top:-0.75em;right:1em;display:none}</style><div role="note" class="metadata plainlinks asbox stub"><table role="presentation"><tbody><tr class="noresize"><td><span typeof="mw:File"><a href="/wiki/File:Mining_symbol.svg" class="mw-file-description"><img alt="Stub icon" 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