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Small Mining Operations

Gold in Guyana—Part I: Porknocking on the Puruni River Road

In part one of this two-part series on gold in Guyana, I describe artisanal mining efforts currently winning alluvial gold from small-scale placer operations located along the lower Puruni River and its tributaries.

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Hard Rock 101: Mechanical Techniques


Since we know that the secret to breaking rock is applying force from the inside out (putting tension on the rock), we will be looking at ways we can generate force using human and machine power.

The Smell of Gold -- Part II


While mapping, I also found rock chips in the soil that were characteristic of the same wall rock alteration that occurs adjacent to the known lodes in the greenstone belt.

Refractory Gold Processing


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.

Who is a Qualified Person?


So you think you have an ore deposit? The work has been long and hard, but there are a few drill holes, lots of samples and assays. The data is in a reliable computer and there may be a mine at the end of the tunnel. What is the likelihood of a profitable operation? Can you raise capital for development or exploration?

A Few Methods for Sampling Hardrock Deposits


With a little homework and a methodical approach to sampling, a prospector can determine if a deposit is worthy of more of an investment...

Proper Spacing of Placer Sample Sites


The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.

The Highs and Lows of Drywashing


We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.

Subscription Required:
The Bawl Mill   • Gold Depositiion and Gradients of Placer Streams—Part II   • The Life of an Independent Prospector   • That Something Extra   • Prospecting for Copper Ores—Part II   • Metallic Trash—Scourge of the Prospector   • Gold Mining Boom in the Carolinas   • California Suction Dredging Update   • Mine, Baby, Mine!   • Hecla to Reopen Lucky Friday Mine   • Nova Scotia Shows It's Serious About Jobs & Mining   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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