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Search results

  1. vlad

    Gold or pyrites?

    Does the "gopher quartz" have a particular color or is it just white? Color is an identifier.
  2. vlad

    Gold or pyrites?

    Test the mineral's hardness. Use the blade of a pocketknife to slice the surface of the specimen. Brush away any dust and look closely for scratch marks. Iron pyrite is too hard for a knife blade to affect, but pure gold is soft and will show a scratch. Or, Hit the specimen with a hammer. If you...
  3. vlad

    Nokta PI Detector

    Steel bottle caps will typically not identify as iron, nor will very small and deep iron targets.
  4. vlad

    Nokta PI Detector

    The Axiom is at $4000. It has Iron Check: this feature helps you audibly identify iron targets with the Axiom when using a DD searchcoil. How well this works is not known. The unit weighs in at 4.2 pounds and for a PI is considered light, but to most VLF's a bit heavy...
  5. vlad

    Nokta PI Detector

    Go Going from the extreme of PI depth to a VLF depth would leave the VLF depth far behind, and unable to analyze to the maximum of the capability of the PI. Because of the PI transmitter "pulsing" on and off many times a second it can operate at 10X or more the power of a VLF, with the...
  6. vlad

    Nokta PI Detector

    They cannot do that.
  7. vlad

    Nokta PI Detector

    The PI is a much simpler detector, and is not expensive to build: there is a lot of room to undercut the very high priced units. If the Whites Tdi still being made it would be the cheapest and most bang for the buck too.
  8. vlad

    Is Metal Detecting on the Decline?

    People pick up new things all the time and as there is only 24 hours in a day that means something else does not get as much attention. When it comes to detecting the thing most in demand is sites that produce. Many places like sidewalks and ball fields have been pounded to death, and often the...
  9. vlad

    Is Metal Detecting on the Decline?

    I disagree: sales are more dispersed from a multitude of sources because of the internet. They may not be "factory authorized" as official dealers but the points of contact are a myriad. Plus selling from homes keeps overhead down. (and there are factory direct sales too, often as specials or...
  10. vlad

    Nokta PI Detector

    The preferred detectors for finding the smallest nuggets seem to be VLF's.
  11. vlad

    For those interested...900/Manticore VDI chart.

    What is amazing is how those numbers match up with the i.d.'s of the single sweep analog Teknetics Mk-1's scale reading from 0---100. (and it came out about 1983)
  12. vlad

    Vista 5kHz detector?

    Were they using it in regular PI or the ground balance mode? In ground balance you can get rid of iron, and that makes a difference on high cs low too. (you think the ground there is bad, try the ironstone in Oz)
  13. vlad

    Vista 5kHz detector?

    Boy did I use to drown minnows at Lake Palestine growing up. You should go to Loves Lookout park: the area down below the fire tower was used for picnics and reunions since the 1800's and there are tables there. Lake J'ville is not real old but full of picnic sites. We used to go to the Tomato...
  14. vlad

    Vista 5kHz detector?

    Have you used the DMC-4? Jerry Tyndall told me it would go deeper in bad ground. (I have a DMC-2B also) I can show you some ground in East Texas with red dirt and saturated with iron ore that will knock the wham out of any VLF: very little depth. And try Fort Manhassett in Sabine Pass: with wet...
  15. vlad

    Vista 5kHz detector?

    Where in East Texas? I'm originally from Jacksonville. (Lon Morris College is closed and a wreck and good hunting there and the Rodeo Grounds behind it.)
  16. vlad

    Vista 5kHz detector?

    Yes. In the USA we are geared more to large silver coins and not as deep. In the UK for example they look for some gold coins know as Quarter Staters that can be very tiny and the purity is low. Another coin is the Farthing and is extremely small. And the Hammered silver coins while larger are...
  17. vlad

    can anyone ID it

    It does not look like opal. They flash different hues and patterns in reaction to white light It could be Moonstone. They were thought to have magical properties and were very popular going back all the way to Ancient Greece.
  18. vlad

    A signal not often come across

    Be safe not sorry: careful retrieval of trash does not slow you. ( I knew a guy that turned a 1867 Seated dime into a hole filler in a coin album.) Its just a good habit that lessens the possibility of scratching a good find. (do you feel personal animus against trash?) :) Other guys mentioned...
  19. vlad

    Crash Course In Beach Detecting?

    On a nickel dime or 1-cent it is in my ground. Playing around in air tests I could hit a nickel at 18" in stat--that boggles the mind. In disc I use boost and crank the sens, with a very slight iron disc. You have a F75, are BC's giving problems reading quarter/half with the 11"DD? ( I use a...
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