Alluvial Gold Quality (Purity)

Natural unrefined raw alluvial or lode gold is an alloy made up of gold and other contaminates of typically silver, copper and others. Gold quality is the proportion of pure gold weight found within this alloy.

See this link: https://en.wikipedia.org/wiki/Gold_nugget


Nuggets are usually 20.5K to 22K purity (83% to 92%). Gold nuggets in Australia often are 23K or slightly higher, while Alaskan nuggets are usually at the lower end of the spectrum. Purity can be roughly assessed by the nugget color, the richer and deeper the orange-yellow the higher the gold content. Nuggets are also referred to by their fineness, for example “865 fine” means the nugget is 865 parts per thousand in gold. The common impurities are silver and copper. Nuggets high in silver content constitute the alloy electrum.[5]

I have found a range of gold quality in Africa from 58% to 96% contained gold. Typically large gold has a lower quality and fine gold much higher.

This large flake gold (I call Corn Flake Gold) has a gold quality of 58% to 62%. See photo:


The author with more Corn Flake Gold with a quality of 58% to 62%:


 Fine gold (I call Sugar or Crystal gold) usually has a much higher quality. This sugar has a gold quality of 96% . See photo:


 Gold quality (purity) is the least important factor in:

7 Keys to Mining Placer Gold Deposits Successfully

  1. Live Production Capacity
  2. Mining methods & techniques
  3. Gold capture systems
  4. River terrain (alluvial deposit characteristics)
  5. Location-Access
  6. Gold Grade
  7. Gold Quality 

 A Napoleon Hill classic: “Think and Grow Rich”. For your enjoyment, use these principles in your Gold business if you like them as I have.


Gold Master Africa

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