What Other Minerals are Found With Gold
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. https://www.nrcan.gc.ca/home
Quebec Place Gold Deposits -Map
https://www.nrcan.gc.ca/home
Eluvial and Alluvial Placers and Gold-Quartz Vein
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 […]
List Poisonous Chemicals VS Terrorism
Effect of Clay on Flotation Recovery
Here is a classic relationship displaying how clays can affect/impact flotation recovery, copper rougher-scavenger recovery in the case.
Gold Processing Methods & Gold Ore Extraction
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
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 […]
Sample Preparation and Analysis Methods
Geology and Mine Samples can usually be prepared and analized using techniques suggested in this Table. The Extractive Metallurgy of Gold
Ball Mill Motor/Power Sizing Calculation
A) Total Apparent Volumetric Charge Filling – including balls and excess slurry on top of the ball charge, plus the interstitial voids in between the balls – expressed as a percentage of the net internal mill volume (inside liners). B) Overflow Discharge Mills operating at low ball fillings – slurry may accumulate on top of […]
Radioactive Gold & Isotopes
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