Minimum gold size for a detector?
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Thread: Minimum gold size for a detector?

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  1. #1
    gb
    Jan 2018
    Scotland
    Garret
    31
    21 times
    Prospecting

    Minimum gold size for a detector?

    Hi Folks,

    I was surprised when my metal detector could not pick up gold flakes in a sample tube, I tried with a new Garret pinpointer also, that can give a slight ping sometimes but weak.
    what is the minimum gold mass/size that can reliably be detected by a Garret pinpointer or a Garret ace 250?

    Thanks

  2. #2
    us
    May 2009
    Sailor Flat, Ca.
    SDC2300, Gold Bug 2 Burlap, fish oil, ACME handbook for TRUE prospectors (unread)
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    Quote Originally Posted by Scottish888 View Post
    Hi Folks,

    I was surprised when my metal detector could not pick up gold flakes in a sample tube, I tried with a new Garret pinpointer also, that can give a slight ping sometimes but weak.
    what is the minimum gold mass/size that can reliably be detected by a Garret pinpointer or a Garret ace 250?

    Thanks

    ACE250 is a piss poor gold detector. Pinpointers are for finding a hard to locate target in a hole that was found with the main detector. If that detector sees it so will the pin pointer.

    It's not an either or situation.

    A detector that won't pick up a quarter gram piece of gold at two inches in an air test. is not worth trying to use in the field looking for gold.
    Last edited by Goldwasher; Feb 14, 2020 at 11:10 AM.

  3. #3
    Charter Member
    us
    Jul 2006
    Florida
    Minelab_Equinox_ 800 Minelab_CTX-3030 Minelab_Excal_1000 Minelab_Sovereign_GT Minelab_Safari Minelab_ETrac Whites_Beach_Hunter_ID Fisher_1235_X
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    Ace 250 is not a detector for nugget hunting, it is low freq 6.5 khz entry level detector and will not pick up gold flakes. Maybe gram if lucky. Remember a tube of gold flakes will still only be seen as individual flakes, it only see them a flake at a time.

    If you want to hunt raw gold successful your going to need to upgrade to a higher freq detector 20 khz or higher.
    Rail Dawg, Clay Diggins and oneguy like this.
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  4. #4
    us
    TerrysKnifeStore.com

    May 2010
    White Plains, New York
    Minelab GPZ 7000; Equinox 600 -- Teknetics EuroTek PRO -- Grave Digger Tools Nemesis shovel, Sidekick hand digger -- Bunk's Hermit Pick
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    It has a lot to do with frequency. Gold nugget detectors use HIGH frequencies, typically 17kHz - 80kHz. Your machine operates at 6.5kHz, so in reality it can't see small gold nuggets. This piece of sub-grain gold was found with a Minelab GPX 5000.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by Terry Soloman; Feb 14, 2020 at 11:26 AM.

  5. #5
    gb
    Jan 2018
    Scotland
    Garret
    31
    21 times
    Prospecting
    Thanks folks,
    It is highly unlikely to find nuggets here in Scotland, we mostly pan.
    I just thought it would be nice to sweep a stream bed or a gravel bank....just in case.
    Is there any probe/detector useful to sweep around a hole dug in in stream bank gravels?

    Thanks

  6. #6
    us
    Aug 2015
    Montana
    Goldmonster, SDC 2300, etrac
    268
    921 times
    Metal Detecting
    Here's a pic of what a gold dedicated vlf is capable of finding. I've found a couple even smaller with the Goldmonster but the coil had to actually be touching the tiny bits....
    I was scrubbing raked dirt on that tiny circled bit and the signal was no where near a "good" signal....gotta dig the iffies for the tiniest of bits and coil right on em….

    Click image for larger version. 

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    Last edited by oneguy; Feb 14, 2020 at 06:31 PM.

  7. #7
    us
    Mar 2018
    Northern CA
    White's TDI SL, Minelab GPX5000 & GM1000, Garrett Pro Pointer
    123
    204 times
    Prospecting
    Below is some of what I found last season using my Gold Monster 1000, it sees very small gold! As stated above the higher the frequency the smaller the gold it'll be able to see typically and the GM runs at 45kHz.

    Click image for larger version. 

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  8. #8
    Charter Member

    Apr 2003
    Alberta
    Various Minelabs(5000, 2100, X-Terra 705, Equinox 800, Gold Monster), Falcon MD20, Tesoro Sand Shark, Gold Bug Pro, Makro Gold Racer.
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    As far as a pin-pointer that will see tiny gold, the Falcon MD20 is what you're after, but it's a tiny detecting head and it's not for depth, but for scrubbing on bedrock, it will see the tiny gold as well as tiny gold in dirt in your pan or on a clay layer.

    Detectors that will find tiny gold, Gold Bug2, Minelab Goldmonster.

    All the best,

    Lanny
    Nothin' quite as fun as chasin' sassy nugget gold! http://www.treasurenet.com/forums/me...mysteries.html

  9. #9
    gb
    Jan 2018
    Scotland
    Garret
    31
    21 times
    Prospecting
    Thank you all for the helpful advice.
    Seems most of these models are available here in the UK, not sure the gold is

  10. #10
    Charter Member

    Apr 2003
    Alberta
    Various Minelabs(5000, 2100, X-Terra 705, Equinox 800, Gold Monster), Falcon MD20, Tesoro Sand Shark, Gold Bug Pro, Makro Gold Racer.
    5,223
    5436 times
    Prospecting
    Quote Originally Posted by Scottish888 View Post
    Thank you all for the helpful advice.
    Seems most of these models are available here in the UK, not sure the gold is
    Actually, I've watched some gold hunting videos from Scotland, and it appears you can find some chunks of gold every now and then; moreover, if you have flake gold, and if there's bedrock to work, the Falcon MD20 will find it for you. So, I'd give it a shot, and it's not a lot of cash outlay to buy one, plus it can also tell you in a dry sample for panning if the dirt you've gathered away from the water has tiny pieces of gold in it.

    Whatever your choice, keep at it and the gold will come.

    I also saw recently pictures of a larger two-piece gold nugget found in Scotland, so perhaps one day. . . .

    All the best,

    Lanny
    Nothin' quite as fun as chasin' sassy nugget gold! http://www.treasurenet.com/forums/me...mysteries.html

  11. #11
    us
    George

    Jun 2019
    Ak,Tn
    Minelab, Fisher
    377
    720 times
    Prospecting
    I think i'd go for Bug2 with a 6" coil, ive been to Scotland looking for gold and was wishing i had my Goldbug..
    A shovel and a pan is a tough way to go there lol
    Lanny in AB likes this.

 

 

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