Gravity Concentration

Gravity Recoverable Gold (GRG) Test

The GRG test is used to determine the theoretical maximum amount of gold that can be recovered from a sample. The testing scheme consists of three sequential liberation and recovery stages , the progressive size reduction allowing for the determination of the precious metal recovery as liberated without over-grinding and smearing coarse precious metal particles.   … Read more

Gold Recovery with Centrifugal Gravity Concentrator

Here is how a gravity gold concentrator (centrifuge) works as a separator: Make sure the concentrator has been correctly assembled and that all bolts have been tightened. If required, attach a funnel to the material feed inlet. If necessary, connect a hose to the tailings outlet. Place the concentrator on a raised structure such as … Read more

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 … Read more

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 … Read more

How To Pan For Gold

Gold panning rubber boots

If you are just starting out as a gold prospector you will need to know the basics and how-to behind practices like gold panning. When you first go out to a body of water like a river, pond or creek, if you have a pair of waterproof boots on hand, put them on so that … Read more

Hog Pan Reviews

hog pan for review

Here is a reviews of the fancy hog pan.  In short, the hog pan is a very expensive classifier or grizzly separator that can accelerate your gold panning.  It is built from aluminium and takes about 6 hours of labour and over 30 tig welds to produce.  At a price of nearly $300, if you can afford … Read more

Gold Panning

Gold Panning Kit

Do you remember when you first learned about gold panning?  Was it during a western movie, in a history or geology class, or at a gold panner’ stand at a theme park?  For me it was when I was about 8 years old watching the classic western movie “Brighty of the Grand Canyon”, a story … Read more

Gold Hog Sluice Mat Review

Gold Hog Sluice Mats

Looking for Gold Hog Matting Reviews I went on a large gold prospector forum and asked the question: What is so special about those Gold Hog Sluice Mats? Here below are all the many answers and comments I received. ———- Hi.It is hard too explain.but many years and testing go into these mats.You should watch the You … Read more

How to SIZE a Sluice Box

How to Build a Sluice Box

This week I went and asked “how to SIZE a sluice box” to the crew on a large gold prospector forum and other sluice or gravity gold recovery ‘experts’ and gathered the list of emails and forum posts here below.  As you will see, in summary, most can optimize or troubleshoot a sluice box but … Read more

Gravity Separation of Heavy Minerals – A Mineral Processing Technique


To perform Gravity separation of heavy minerals in the range 600 microns to 12 microns and to simulate gravity recovery performance on a sample hoping recovery and grade achieved can by higher than in plant operation, will let you analyze the grade/recovery curves permitting a relative assessment of performance. You will use a superpanner as … Read more