Prospecting & Detecting
Refractory Gold Processing
February 2013 by Thom Seal, PhD, PE
After your excitement peaks when you first receive the high gold assay from the vein you just exposed, you ponder how you will extract and sell your gold. You will need to develop a flow sheet for your process to optimize your recovery and minimize your costs and permit requirements.Turning Hobby Mining into Business Mining
The first thing a person should do is seriously consider whether they want to go mining as a hobby or a business, and the tax implications of the choice.
Miners Fight Back When BLM Says 'Your Claim Is Too Long'
BLM stated we had 30 days to amend our claim so that it fit within one 40-acre square or we would forfeit the claim.
Bedrock
I am going to break bedrock down a bit and explain my view of the varying scenarios I come across in the field.
Placer Gold Deposits in the Western States
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
Some Tips and Tricks for Dredgers: Determining Pulley Size and Belt Length
If Epd is larger, then the compressor will be spinning faster than the manufacturer’s maximum specified RPM and might destroy itself. If this happens, then the compressor again might not produce enough air to support a diver. Neither is a desired outcome.
PLP Update
All 28 groups listed agree that Section 402 of the Clean Water Act does not apply and no dredge miner should be asking a state or federal agency for such a permit.
Determining The Optimal Crushing Size for Gravity Recovery
It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.
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