I was thinking, as far as gold reading different numbers, when I swiped the different sized gold nuggets under the Quattro coil, I found that the different number readings seem to be related to the size of the nuggets. For example, the smaller the nuggets, the lower the numeric reading. The bigger the nugget, the higher the numeric reading. But I believe the conductivity of the gold remains the same, despite the differences in the sizes of the gold nuggets. So it would seem that, even though the conductivity of the metal really hasn't changed, the readings do seem to be related to size.
Hello Gila Marc,
I was also thinking that as far as gold and bacterial processes are concerned, this method of using bacteria is being used more and more in Australia, particularly with sulphite ores, instead of the carbon and pulp leeching (cyanide process). We've got plenty of gold nuggets here in Australia, and more to be found. The "Welcome Stranger", and the "Welcome" nuggets both weighed in over 2000 ounces each. As far as how nuggets are formed, there are many theories, and some of these theories are correct, because there's not just one process. Some nuggets are associated with Quartz, but others may be formed using a bacterial process. Recent research in Aussie found that nuggets can grow as quickly as 1 grain of gold in 12 months, which I believe is around 15.4 grains of gold make up about 1 gram of gold. So, a one gram nugget could take up to 15 years to grow. This may explain why seemingly hunted out, or prospected out areas, seem to replenish with small nuggets, and why even though the old timers may have taken all the gold out of an area, why 100 years later, we're finding gold again, in these same areas. Or, after 15 years, the 1 gram nuggets have now grown to two gram nuggets, and our detectors are picking up these nuggets, where they were unreadable before. The 1 gram has grown to 2 grams in weight and size. I believe bacteria deposit their gold where the ground changes condition, which can now be detected, by simple PH testing. This could mean that our methods of detecting will take on new forms, by soil sampling. What do your think Marc? I'd love your imput, thoughts and knowledge on this!
Just some of the stuff I've been keenly trying to learn about over time. Angela

