What To Do When Gold Recovery and Assay Values Differ

May 2018 by Don Robinson

Before going into an analysis of the ore composition, two other major factors will affect the result. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.

Ask The Experts: Equipment to break up heavy clay

January 2017

Q: I am looking for a “trommel machine” that doesn’t separate anything but clay slurry from rock hard clay.

Ask the Experts

April 2014
Bismuth oxide for assaying?

Ask the Experts - proper mining claim procedures

April 2013
Q: Can you offer any information on proper mining claim procedures?

Detecting Alone -- What to Look For

October 2014
I figure there are a lot of new people out there who have the same question. I will try to give some answers that hopefully will give you more confidence in finding your own spots.

Enrichment of Mineral Deposits by Weathering—Part I

March 2016

The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.

The Basics of Crushing and Milling Operations

February 2011
In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured.

The Importance Of Mining Critical Minerals In The USA

March 2019

Critical minerals are products that the government has designated as critical to our national interest because of both their potential military and industrial applications.

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