How To
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.
Hard Rock 101: Small-Scale Blasting
…the process remains much the same: Drill holes, load explosives, close up the holes, blast and muck out the resulting broken rock.
The 10-Ton Boulder: Expanding Grout Demolition
Imagine you have located a source of virgin placer ore containing immense gold value. Now imagine that there is a 10-ton monolith of extremely hard gneiss in between you and payday.
Sampling for Success—Part I
All these decisions and more depend on the richness of a claim—something that is determined by sampling. But sampling isn’t cheap, and even collecting the samples can be more difficult than it appears on the surface.
Prospecting for Copper—What to Look for on the Outcrop
For the prospector, knowing what oxidized hydrothermal alteration looks like in the field is an important exploration tool.
Attention to Detail - Part II
Ditches almost always started in the high country and contoured the mountainsides, making a long drop, usually many miles away, to the goldfields. There are ditches in Trinity County that originate at seven and eight thousand feet in the Trinity Alps that carried water almost thirty miles.
Ask The Experts: Should I remove someone else’s claim post from my claim?
Q: Can and should you remove their poles and notice right then and there or should you wait until you have convinced them of their trespass?
Ask the Experts - proper mining claim procedures
Q: Can you offer any information on proper mining claim procedures?
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