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geof_junk

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  1. Hydrofluoric acid (HF) is a strange acid. It does not give you any 'warning pain' when you get it on your skin, but is deadly once it gets in. Back in 1981 I can remember Work using many 1000's of gallons of HF to remove the milling scale on a large Boiler. It arrived in steel road tankers not what most people expected. HF really likes Silica so don't store it in glass.

    Not HF but a link to the most strongest acid .......The Strongest Acid

  2. The biggest problem with the flies is that they gang together and lift your eyelids and start drinking the moisture from your eyes. They also see how many of their mates can join them in your mouth. If you want revenge you can use a electric zapper racket and feed them to the ants, if you can tolerate all the smoke from their fried bodies and wings.    

  3. Low and slow is great if you are trying to get gold that was left behind by other detectorist. If you are trying to live off your finds, then you need (say 1 ounce a week or may be 1 gram a day) then you have to cover enough ground to get that amount. If the ground is good you are best to slow down if poor then you have to go faster to cover enough ground to get your yield. In poor virgin ground you are not getting what other people have missed be cause they have not done it. The main thing to do is use the lightest chain (or marker) that will give you a workable grid line that will disappear quickly so as not to attract any one else to your pay packet.It pays to over lap evenly  and keep at a constant low working height with your appropriate coil. Some of my good patches, I gridded were over 800 meters long and wider than 100 meters when the gold yield dropped off I then hit the best spots LOW & SLOW in the opposite direction. It all depends on your decision how to work the ground. What is best, leave a few crumbs behind or leave most of your patch behind?      You have to be as cunning as a  ?

  4. Jan 23, 2015 - The temperature has hit a scorching 49 degrees in the small Western Australian outback town of Marble Bar- just 0.2 of a degree below the highest temperature recorded in the town. If you are tough enough (Like us Oz) this map might help.GoldMap.thumb.PNG.f404849df5f301201770019cc03b8bdc.PNG

    RoundAssy&WA2005 (973).JPG

  5. I have been chasing gold since 1964  and found about 5 oz before I started detecting in 1980. Spent 8 weeks 12 hours a day detecting in the golden triangle victoria at the start of the detecting rush. I knew about panning and dredging for gold but those 8 weeks detecting was only a learning activity (NO GOLD).I was not hunting in the right spots. As for lead I have over 35 kilos from bullets and sinkers (Thats would be over 1000 oz if it was gold.) I have found over 100 oz of gold and I still do not know what is worst finding heaps of targets or spend days trying new ground and finding no targets at all, but finding a virgin patch sure makes up for it. My advice keep trying and changing your methods till you find what suit you, then refine it. I will not say best of luck as luck only goes so far but persistence pay off better.   

  6. I found Elliptical coils were best for ground cover when the target is a strong signal.

    That is 14" x 7" coil  will give you about the same penetration as a 7" round coil and a similar ground cover as a 14" round. If the signal is very soft (very small target near the surface or very deep good signal were you have to over lap your swings a round coil wins hands down. ). So a correct size elliptical for patch hunting an a appropriate size round for working a patch. 

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