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Small Mining Operations

The Basics of Froth Flotation

I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.

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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.

Small-Scale Processing of Hard Rock Ores


Depending on the ore and if significant sulfides are present, a hard rock miner may be able to get away with simply using a flux to digest the other minerals that may be present.

Using Structural Clues to Locate Buried Placer Channels


They must have assumed the paystreak was spotty and had been mined out, so they never mined as close to the side of the valley as they should have.

Small-Scale Concentrating and Recovery Methods


The first step in my recovery process after milling the ore to the desired size is to table it. On this particular ore, I get good results milling it to minus 100 mesh.

The Basics of Permitting and Bonding Your Mining Operation


With the recent surge of interest in gold projects, it’s about time to revisit a subject that strikes fear into the hearts of small-scale miners: Permits.

The Miner’s Switchback


Common thought is the switchback slows the velocity of the rushing water and gold drops out from the cut bank to a fill gravel bar within or below the switchback. I am not going to disregard that model; however, I hope to improve upon it.

Simple Mine Surveying With Basic Hand Tools


…there is an easy way to create a reasonably accurate map without any fancy instruments.

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