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kiwijw

Gold Spear

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That is going to be a hard thing to find if there ever was one. Other than trying to contact the manufacturer at the link posted previously you might try contacting Pro-Mack Mining. If I recall correctly they were the distributors back in the day. Maybe they have some parts in a corner somewhere.

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I contacted the manufacturer.  They said all parts and inventory were cleared but they may have another newer design coming.

Not looking to buy a new one though....Like I said it is just a fancy VOM ...

I guess I will just have to try to make my own probe tip... someday..lol...I don't feel too much urgency but it would be useful in beach mining.... I think??????

I heard of one gu using a clam gun to find black sand layers... heard it did ok for him, but of course limited to the depth of the clam gun which is about 30 inches.

There was an old method where they drove rods into the sand and connected them and were able to find conductive layers... Kinda like the old nightcrawler system in reverse I guess.

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Got myself & Goldspear. NZ$400

20181024_184113

 

20181024_184003

 

20181024_184009

Finds gold in my gold jar.:biggrin:

JW :smile:

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32 minutes ago, kiwijw said:

Got myself & Goldspear. NZ$400

Finds gold in my gold jar.:biggrin:

JW :smile:

If it can see fine gold, sluice style stuff I know a place to stick it where there is a good layer of black sand with a lot of fine gold.  I was gradually hacking away at it with my sluice last summer ?

Would be a handy gadget if it can.

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2 hours ago, phrunt said:

If it can see fine gold, sluice style stuff I know a place to stick it where there is a good layer of black sand with a lot of fine gold.  I was gradually hacking away at it with my sluice last summer ?

Would be a handy gadget if it can.

Yep...that's the idea of it..... http://www.metalldetektor.se/gsmethod.htm

JW :smile:

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11 hours ago, kiwijw said:

Yep...that's the idea of it..... http://www.metalldetektor.se/gsmethod.htm

JW :smile:

hmmmmm, I want one! 

There are many good things to say about Goldspear, but here we will only mention that Goldspear is the only instrument in the world that is especially designed to find goldflakes, small gold particles and micron gold, even in highly mineralized sand.

Unlike all other detectors, Goldspear is totally uneffected by mineralized sand. Even highly mineralized blacksand beaches or riverbanks e. g. There, Goldspear will find even minute gold particles with ease.
 

Would be the perfect gadget for finding where to dig in the river for my sluice ?  Also that sea beach down the bottom there with the gold in the sand!! 

Seems like you got a sweet deal on it.

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An interesting device (and idea) but sounds like it won't work in most prospecting sites.  There are (expensive) resistive scanners available, that supposedly find voids, objects and minerals, including gold, in the ground.  These generally require the user to pound multiple probes into the ground; and the results are shown on a screen.

https://www.kellycodetectors.com/blog/find-gold-resistivity

https://www.metaldetector.com/drs-advanced-resistivity-scanner

I have no idea if they are of much use in finding ground with small placer gold.  I suspect not, or we'd be hearing more about it.  But then they are expensive, so not really suitable for the detecting done by most hobbyists.

As to the Gold Spear, I wonder if a detector-based "probe" approach would be more fruitful, simply using a long, thin coil?  Essentially, squeeze a coil for a gold detector into a sword-like form, maybe 3/8 x 1 1/2 x 20 in. or so, plus a handle. Can you put the windings that close together? Have a matching steel spike that could be driven into the ground to make the hole for the coil to use. If needed, maybe insert a plastic "scabbard" for the coil.  Even if not very efficient, if it works at all, the coil should be able to detect adjacent flakes down there.

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I think I finally found one.....

Will be going to take a look at it next weekend ......

 

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If it dont work out let me know I broke my gopher hole probe the other day and am in need of a new one  :smile:

strick

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5 hours ago, strick said:

If it dont work out let me know I broke my gopher hole probe the other day and am in need of a new one  :smile:

strick

You need to use 1/2" rebar................:biggrin:

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