World Gold Deposits Map

map of where gold deposits are found in the world

Here are 5 maps of where gold is found in the world while highlights zones where is the most gold found on the planet. http://www.nrcan.gc.ca/earth-sciences/science/geology/gsc/17100

What Other Minerals are Found With Gold

elements in epigenetic gold deposits

Generalized paragenetic sequence of principal minerals and elements in epigenetic gold deposits. Minerals and elements shown include only those in veins, lodes, etc.; minerals and elements in wall-rock alteration zones are excluded. http://www.nrcan.gc.ca/home

Eluvial and Alluvial Placers and Gold-Quartz Vein

gold quartz vein supplying material to form eluvial and alluvial placera

Sketch illustrating outcrop of a gold-quartz vein supplying material to form eluvial and alluvial placers. By one terminology, an eluvial placer embraces all materials not transported by streams. By another, only the placer materials over weathered and disintegrated deposits constitute an eluvial placer; downslope and other placer materials are classified as deluvial and proluvial as […]

Gold Processing Methods & Gold Ore Extraction

Gold Ore Processing Results

Of all the methods of extracting gold & processing it from its ore, I used a few to evaluate two principal flowsheets in this case study. The flowsheets utilized operations that involved flotation, cyanidation and gravity concentration. Tests that mirror each of these unit operations were utilized to evaluate the principal flowsheets.  This page offers a comparative […]

Rare GOLD Minerals

Petzite

This list of ores classified as natural and rare gold minerals are refractory to process. All these are sulphides refractory gold bearing minerals and will have a poor response behaviour to usual cyanidation extraction methods, and for the little guy, best used for exhibit or sold to rock collectors on eBay.  Native Gold  Au Formula  Muthmannite Very Rare […]

Radioactive Gold & Isotopes

radioactive gold

The only natural gold isotope is 197Au.  All others are radioactive ranging from 185Au to 203Au and are manmade. They dont make for good lasting investments since their half life goes from 1.35 sec to 185 days.   The Extractive Metallurgy of Gold

Gold Deposit Classification: List of 10 Types of Gold Deposits

Gold Deposit Classification List of 10 Auriferous Types

Gold/Auriferous Deposits can be classified into types for which here is a List of 10 Types of Gold Deposits: Auriferous porphyry dykes, sills, and stocks; Auriferous pegmatites; coarse-grained granitic deposits + albitite. Carbonatites and carbonatite-related deposits. Auriferous skarn and gold skarn type deposit. Gold/Silver and vise-versa veins, lodes, mineralized pipes and irregular silicified deposits in fraction, faults + zones. […]

Gold Jig DIY Plans Hand Operated

Gold Jig

For for Coarse Gold Recovery (>2mm), here is an easy to build hand-operated mineral jig.  This jig can be used for batch ‘jigging out’ gold from oversize (>10 mesh) from pre-sluicing or panning rejects as occasionally there will be coarse nuggets present in the oversize rock and this can-be-homemade jig works as a simple hand operated […]

Gold Sluice Box Design

sluice designer

The gold sluice box is an efficient alternative to panning for gold, allowing the prospector to quickly sift through a much greater volume of sediment. Although many affordable varieties are available to purchase, they are even more affordable to build. With a little knowledge, skill, and creativity, a prospector can build a custom sluice box from […]