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High-Performance Blades Sharing ideas for getting the most out of our steel.

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Old 10-14-2006, 04:58 PM
B.Finnigan's Avatar
B.Finnigan B.Finnigan is offline
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Join Date: Jun 2005
Location: Near Rainier WA
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Magnetic black sand seperators

These are tools you must make if you want to harvest your own black sands. To my knowledge nobody sells anything close to these. There is a very small version of these that are sold to prospectors but they are way too small for gathering any quantity of black sands.

I built these before I knew that my local sands suck for iron content.

This is my high volume scoop made from 6" PVC pipe, wood and a donut magnet. You slide the magnet up to the base of the scoop fill it with a cup or so of regular sand. You then swirl it around a bit and then dump it out. You then slide the magnet down away from the base of the scoop and dump ou the magnetic black sands.

I did not have any 2" dowel so I hole sawed several 1/2" thick chunks of maple and then stacked them after gluing. The nearest hardware store is a 14 mile round trip for so I have to improvise alot. The 1/4" hole in each piece from the hole saw also functions as the means of securing it to the scoop with a length of allthread. The wingnut at the base allows me to break it down to fit in a day pack easier.




This is my light weight seperator that allows me to sample a stretch of sand and take alot of quick samples to find hot spots. It is also made of PVC pipe and some small ceramic magnets from Radio Shack. The magnets are attached to the bottom of the inner section. It slides down to the bottom of the larger outside chunk. The end of the outside chunk has a 1/32" piece of abs plastic that is JB welded to form a seal. It also has an aluminum collar so when you pull the inside pipe piece up the sands don't follow it. The magnets have a 3/8" hole so you can use a 3/8" bolt to attach them. The "T" coupling at the top is prevent the inside piece from slamming down and knocking out the plastic seal at the bottom of the larger piece.




Last edited by B.Finnigan; 10-18-2006 at 05:33 PM.
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Old 11-29-2006, 05:01 PM
EdStreet EdStreet is offline
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Join Date: Sep 2005
Location: Columbus, GA
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interesting to note this looks exactly like the tips on shot horns for muzzle loading.

Ed


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Gold is for the mistress - silver for the maid
Copper for the craftsman cunning in his trade.
"Good!" said the Baron, sitting in his hall
But steel - cold steel is master of them all.
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