Can a detector signal on fine gold ?

[user 4485]

It wasnt one of those ebay trick things Mat , it had a few floors but it could do what it stated it could.
They were pretty pricey to from memory so not many people tried them so they never kicked off.

Be interesting to find one & try it out. Might have just been that vid but I wasn't really convinced?

 

[GaryO]

Oh for sure that vid was dodgy as lol , I wouldnt buy it after watching that.
I do remember when they were in G G & T magazine and were being talked about and dont recal any fake claims , just stuff like if the ground was rocky sometimes they would pick up filings scraped of the shaft or just not being able to test to deep.

 

[Heatho]

Next time my detector "groans" on some ground out West I'm going to take a bucket with me and pan it off out of interest. I don't know, I don't think it would be a reliable way to find fine gold.

From memory I was running it on the beach in Coin/Relic timings so any mineralisation will make it groan. Running in fine or Enhance is just as likely not going to give any response if GB properly.

 

[nuggetino]

Because detectors often groan on a change in mineralization it might be worthwhile running a ground balance or having tracking on. If you come across a patch of ground that produces a signal much like a hot rock and can't be tracked out I'd be taking a sample and panning it. I still don't know if my 4500 signalled on the fine gold in the ground or other mineralization present. Panned out a hell of a lot of black sand too.

 

[AtomRat]

I'm going to give the groan a go as well as I found ground like that which the eureka gold just didn't like any settings over. Great tip

I've watched a few youtube vids Outback of blokes using detectors to find high mineralised areas and flows which they mark out with flags to see where to dig and the golds likely path from when water deposited it there. It would certainly work on dry ground too with the right machine of course

 

[GaryO]

Ive heard the GB2 is ideal for that , ive never tried it tho .

 

[Hunting the yellow]

I once found 00.2 of a gram in quartz underground with a Garrett detector



pic says it all just happened to break it open in the right spot crushed it all for a total of 00.2 of a gram of gold

 

[Ridge Runner]

Because detectors often groan on a change in mineralization it might be worthwhile running a ground balance or having tracking on. If you come across a patch of ground that produces a signal much like a hot rock and can't be tracked out I'd be taking a sample and panning it. I still don't know if my 4500 signalled on the fine gold in the ground or other mineralization present. Panned out a hell of a lot of black sand too.

That's what I said earlier about running in fixed, the Groaning is the machine no longer being Balanced, When you are Balanced to the hot ground and then it starts to Groan that is the Drop in mineralization because the machine is still set to a higher GB Level and in that manual it show that the Fine Gold deposit can be found where that drop off is right on the end of the High mineralized Area,

Although that is a Whites manual, If your 4500 is doing that Via ground noise then in that hot Ground The GP/X machines should have more success at finding these spots for 2 reasons one they can handle the Ground and two they will find these spots Deeper, Sounds like a win win situation to me.

john

 

[Secret Squirrels]

i was at the Christmas gold mine at Wedderburn when Duog MCguire had it andhe put a jar of fine gold on the ground and my detector would not read it i think it was the Extreme i was surprised kanga1934

My apologies Outback for highjacking this thread, but i was just reading through it and came upon Kanga1934's post, and it has dragged up a lot of memories for me. I'm just interested to know if Kanga1934 knew Doug McGuire personally?. He and Anne (were) are my uncle and aunty, they ran mining courses for uni vic whilst operating the Christmas reef mine at wedderburn back in the late 80s or early 90s. Doug was a man of many stories and a lot of 1sts, and i'm a bit cloudy on this part of his history, so i would be grateful if Kanga has any info to be gleaned. Thanks for your time. Reg.

 

[RM Outback]

This has been on my mind for some time now, next visit to the Hot Spot will see me working - crowbar / pick / shovel & buckets then home to pan off.

On a particular patch of ground my 23 & 5k groan every time. I've adjusted threshold, sensitivities, factory reset, changed coils (5k). And dug the ground thinking ground noise will disappear no matter what I try it's the same response each time. I have managed to pick up some pieces with the 23 it's hard work concentrating, does my head in after about 1/2 hour.

 

[jamie]

i read in a GG&T magazine about someone using their detector (maybe a ML GP?) to locate deeper ground/change in minerlization/black sands and then look to sluice it, has been a while since i read it but i do remember it saying about the newer machines not doing it so well, i will see if i can find that article again and reference it
cheers
Jamie

 

[Ridge Runner]

I know the higher frequency machines can see very tiny stuff, My MXT can see bits between 0.003 to 0.006 grams and it can see one bit that can't be weighed, and the GMT can see that bit that can't be weighed between 2 to 3 inches,

John

 

[jamie]

so i found the article i was banging on about, it is about locating palaeochannels but i guess it relates to this somewhat and may be of interest to a few here, also i confused it with a similar article which i am still looking for at the moment, i seem to have a larger than realised collection go gg&t, page 29 of gold gem and treasure, december 2014, it was written by a fairly well know guy in the detecting world, hope it is of interest
cheers
Jamie

 

[Diablo]

The specimen below was detected at about 3inch, (Tesoro 20khz 7"elliptical ).

It was sounding very much like a hot rock,,,, this half gave a subtle signal ,the other half gave nil!
The little pinhead size bits visible scattered through the specimen.,jbtgy
Probably good fortune more than the detector. "Any port in a storm!"
Have thought about putting it in the dolly pot, too nice.

Diablo

 

[Ridge Runner]

The specimen below was detected at about 3inch, (Tesoro 20khz 7"elliptical ).
https://www.prospectingaustralia.com/forum/img/member-images/7795/1473063690_image.jpg

It was sounding very much like a hot rock,,,, this half gave a subtle signal ,the other half gave nil!
The little pinhead size bits visible scattered through the specimen.,jbtgy
Probably good fortune more than the detector. "Any port in a storm!"
Have thought about putting it in the dolly pot, too nice.

Diablo

That's what I meant, VLF's can see really micro bits close to the surface, even down to the size of a piece of Glitter,

Thanks for posting it,

John.

 

[Gregupnorth]

With the GMT it will give you a lower ground reading if you hit a pocket of fine gold, So the Answer is yes,

Plus:-
I changed the coil on my GMT and it can see bits smaller than a grain of white sugar and about a 3rd of the thickness at about 3 inches, It is that small the only way to pick it up is to wet ya finger or use sticky tape. but using the standard coil it only sees it at about an inch.

John

G'day John
I am interested in what coil you changed to from the standard
Cheers Greg

 

[Ridge Runner]

With the GMT it will give you a lower ground reading if you hit a pocket of fine gold, So the Answer is yes,

Plus:-
I changed the coil on my GMT and it can see bits smaller than a grain of white sugar and about a 3rd of the thickness at about 3 inches, It is that small the only way to pick it up is to wet ya finger or use sticky tape. but using the standard coil it only sees it at about an inch.

John

G'day John
I am interested in what coil you changed to from the standard
Cheers Greg

Greg, I used one of the older Goldmaster Coils, Because they are a Concentric just like the ones on the Gold Bug II and it really hots up the GMT, They don't make them anymore but you can buy them pretty cheap, I bought a Old New one that had been sitting on the shelf in some store in the US, I paid about $100.00 USD for it. You can use the GM II coil or from the early Goldmaster and the GM 3 and some of the V-SAT coils, What you are looking for is the Whites 6x9 Longscan Coils, The name long scan relates to the shape being an elliptical coil.

John.

 

[Gregupnorth]

Thanks Gold Nuggets- John,
For getting back so quickly with this very informative information. Muchly appreciated.
Cheers Greg

 

[Ridge Runner]

Thanks Gold Nuggets- John,
For getting back so quickly with this very informative information. Muchly appreciated.
Cheers Greg

Ya welcome mate, Before you buy one show me a picture of it because they come with many different Labels on them and there is word of a new Smaller coil coming out soon, But I would grab one of these first if you can because these are hotter than the 4x6 Shooter coil which is a DD,

The Longscan coils are the same size as the standard GMT Coil, but they use to call them 6x9 and then 6x10 but they are all the same size and they take the same coil cover/Skid plate as the standard GMT Coil, they did make an 8x14 Concentric but I reckon it is a bit on the Lazy side, But you can still find em and they are White in Colour, If you find a Black One then it Is a DD, Ok.

Good Luck,

John.

 

[Ridge Runner]

Here ya go these are the Labels you want, These are all the Goldmaster Longscan Concentric Coils.

Good Luck.

John.

Goldmaster GM II Longscan Concentric.

Goldmaster V-SAT Longscan Concentric.

Goldmaster GM 3 Longscan Concentric.

Goldmaster GM 4b Longscan Concentric.