Jump to content

Recommended Posts

I would like to know what exactly is minerlaization,   What kind of minerals? are they all iron based or mafic?  what about  other things?   I am considering the purchase of my first  detector and looking at a used  xterra 705.  I know that  VLF are limited in heavy minerlized soils/Rocks  so I am trying to find wha th elimits of this detector would be.  I plan mainly to hunt for gold nuggets > while I would like a  PI I don't see any that re reasonably priced for a first detector.   What thoughts do you have?

Share this post


Link to post
Share on other sites

If you search for MINERALIZATION you will find many posts about it....a used xterra-705 with the gold coil is a pretty good start for nugget hunting...

Iron is the worst mineral affecting detectors ( I think) but there are hot and cold rocks that mess with you too...I doubt there is anywhere in the western states that lacks mineralization...at least any where I have been.

Steve or Chris Ralph could be much more informative than me.

fred

Share this post


Link to post
Share on other sites

Wanderer, I did not do well with the 705 and mineralization.  I would recommend the Gold Monster 1000.  It handles the mineralization so much better if this is your concern.

Share this post


Link to post
Share on other sites

The Monster will also find much smaller gold than the 705.  The Equinox 800 handles mineralization better than the Monster too, and it also finds tiny gold just as well, you can also use it for all forms of metal detecting so if you have no luck on gold and want to find some rings and coins and so on, it's a stellar machine for that.  Ease of use the Monster wins hands down so being your first machine that's a big bonus.  

 

Share this post


Link to post
Share on other sites

Well, I dug some sub-gram nuggets with my x-70 and I know the 705 is a better detector...

I have used the Monster and it is very, very good at finding gold...but, not really available used. Nor is it a very good multi-purpose machine. If I were buying a new detector for nugget hunting it would be the Monster

There are used whites and fisher models that can be had for a few hundred bucks....read Steve's recommendations and then shop used based on what you want to do...

like most of us you will have to balance desire, economics and use to find your first detector.

fred

  • Like 2

Share this post


Link to post
Share on other sites

If you go with the 705 you most definitely need to get the 6" DD HF coil and the 15" DD HF these two coils are absolutely essential for gold nuggets. The Xterra705 is very good for tailing piles with the 15 coil. I will be using my 705 this weekend on tailing piles from a dredge and some piles on a hydraulic dig. I will grid off a section at a time with surveyors twine  to make sure I cover the ground thoroughly with sensitivity reduced to where it is quiet with no ground chatter. I want to be able to hear the faintest real target signal. After this is complete  I will research the area with the sensitivity set to max of 30 for the depth and listen for the very distinct target signals through the chatter. These signals should be always repeatable no matter which direction you swing the coil over them.

  • Like 2

Share this post


Link to post
Share on other sites

This post I made on Ground Balance Numbers As An Indicator Of Mineralization will probably tell you more than you need about what mineralization is all about. As regards metal detectors, mineralization is any naturally occurring mineralization in the ground that interferes with a metal detectors ability to operate. This most commonly means magnetic ground minerals such as magnetite and maghemite and possibly also alkali salt mineralization. VLF detectors are more prone to negative effects of mineralization, with pulse induction (PI) detectors better able to tune out and ignore mineralization.

  • Thanks 3

Share this post


Link to post
Share on other sites

If you are new to the hobby the 70 or the 705 are fantastic detectors. I found my first gold nugget with a 70 and they can still hold their own to this day against any of the other mid-frequency VLF's. You've been given a lot of advice here, if there's one thing I would add, it would be: Pick one detector and stick with it! 

The guy with an older model detector, who knows it well, will do just as good if not better than the guy that has a 'flock,' of metal detectors, none of which he has put enough hours on to truly learn there nuances. It takes a lot of time on a machine before you develop a connection to each and every quirk, sound, breach in threshold, etc. It's very easy in this hobby, as in any, to get caught up in having the latest-and-greatest equipment - try and resist the urge. 

 

  • Like 3

Share this post


Link to post
Share on other sites

I have decided to purchase the 705. For the money  I don't think it can be beat. It sounds like it will work with an dallow me learn more as I get better.  I probably could have  gone for a PI but  they are 2 to 4 xs more and my wifes transmission just went out.  That is where the real gold is.

  • Like 1

Share this post


Link to post
Share on other sites

Good choice....as was said before-learn your machine and you will do well!

fred

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By phrunt
      I was out detecting with my Equinox and had a solid 21-22 on the VDI numbers, it never flicked off those numbers, it was down about 15 cm's.  I dug it up expecting a NZ $1 or $2 coin, both come up the same numbers.
      I was puzzled when what I ended up finding was a rock looking object
      This is it next to an older NZ 10c coin I found only minutes before hand

      To me it looks more like a rock than a bit of metal, I tried to hit it as hard as I could with a hammer to see if it was a chunk of lead or something thinking that would flatten it, it didn't make a mark on it. I then hit it with the back flat end of my Log splitter thinking this will surely do some damage to it, but no, it didn't leave a mark, all it did is cracked the concrete under the mystery object.  This thing is extremely tough.
      It weighs 17 grams and feels quite heavy for it's size and not magnetic.
      What could it possibly be? 

       
    • By Cal_Cobra
      Called my usual dealer, Backwoods, and no eta at all on when he'll get them.
      Anyone know any dealers to check with? 

      TIA!
      Cal
    • By vive equinox
      I wonder that because i read To put sensivity To 1 before pump GB is better . 
      I dont belive but anyone know about that ?
    • By Happa54
      Hey everyone...
      There are horse paddocks a few miles from home. I stopped in once before a few months ago and got a merc, some wheats, modern clad, bits and pieces of jewelry and metal grommets or ornaments off of clothing. I dug a bunch of quarters there which tells me that no one is hunting the area. These digs came from the grassy areas surrounding the paddocks. 
      On my return yesterday morning, I decided to go into the paddocks (all the gates are open) to see if I could find rings, bracelets or whatever metal objects my Nox would pick up. The ground is an inch or two of crushed rock, not quite sand, and real gritty. It was like finely crushed gravel...lots of tiny rocks. Below this topping, is some sort of concrete floor or something rock hard. Don't know what it is but my Nox was getting high conduct signals from down under and I couldn't break through. I gave up on it. 
      Here is my scenario...
      I started in Park 1, factory settings. My audio was extremely choppy. No consistent signals. Took off IB, went to 50 tones... still choppy and erratic. I felt myself panicking a little. What to do? I put it in Park 2, factory settings. Still choppy and erratic. Did a couple of noise cancels and ground balances, to no available. I thought to myself, "I'm outta here".  
      Is this what beach hunting is like? No can't be. This was strange and I knew that I have to research and discuss with members on the boards. 
       
       
    • By phrunt
      Disclaimer: I've only really been interested in Gold hunting so I'm pretty clueless in using my Nox for jewellery hunting.
      This might be a challenging one, a farmer I knows wife lost her wedding ring in a paddock and didn't realise,  Later the same day they run a plough or some sort of farming gadget over the paddock as they planted it out with grass seed so the ring is likely buried.  They're pretty certain it was lost in this paddock.
      I have been recruited to try find this ring, it's 24k gold with about 20 diamonds on it.  The guy originally gave me the wrong description of the ring, probably his ex-wife's ring he described as he said it had 1 diamond and sapphires 😄
      The paddock is really junk filled, I went and swung my detector over it yesterday morning before skiing and there was iron I assume setting the detector off everywhere in all metal mode.
      I know the VDI numbers are extremely useful for coin hunting but will they help for finding this ring, I really don't want to have to dig everything! Is there a range I should be targeting? I assume Field 1 will be the best mode or maybe Park 1 seeing there is a lot of junk?
      Small gold when prospecting always comes up under 10 on the VDI's, I am guessing a ring will come up higher? 
      Would the Equinox be my best choice or would I be better off using my T2 with Mars Tiger 10x13" or 15" round Stock T2 coil for more ground coverage? I also have a Garrett Euroace with Nel Tornado 12x13" I could use if that would be best.  That's the biggest coils I own.
      I have a GPX 4500 with a 15x12 DD Commander I could use but I don't want to dig lots of junk and I was hoping VDI's would be useful.
      I told them I'd do the hunt for nothing when they tried to pay me as it's a bit of fun for me anyway but they said they can't allow that and they'd give me a few sheep for my freezer for my efforts even if I don't find it but I'm sure if I find it they'll force me to take some sort of payment, I will try refuse as I really don't want it but it will be difficult to not take it when they're forcing it....
      The paddock is about 3 hectares!!!!!  Just over 7 acres so I really have a job ahead of me.  The soil is extremely mild but it seems to have its share of junk.  I assume rusty old nails and tractor bits and mower blades whatever else over the years.
      Any help appreciated.
    • By ☠ Cipher
      Found this item on Amazon. It might be good for dunking sub-IP68 pinpointers, or as an added level of protection to IP68s. I'm going to buy one just for the heck of it. What do you guys think? 
×