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Question about gold

A

Anonymous

Guest
I just dont understand why gold show up like pull tabs, it is a very conductive non ferrous metal, you would think that it would show up close to Silver. I just dont get it?
HH
Ray
 
Silver and copper are highly conductive metals, but gold is not. Yes, gold is used in circuit boards, etc., but that is due to it's resistance to corrosion and oxidation, not because of it's superior conductivity. A 24 gram gold nugget reads slightly higher on the VDI scale then does a 2.2 gram silver dime. Hope this helps; HH jim
 
it's used for power transmission lines. Lighter and cheaper than copper.
 
The relative conductivity of gold depends on if it is pure gold an the gold itself. Aluminum has a relative conductivity of about 59 while gold is around 65. Mix in a little alloy and the readings can be very close or the same.
You will see different numbers for gold and silver based on how the conductivity is calculated. The resistance of a specific type of gold is measured and then the conductivity calculated at a specific temperature. Anyhow, a gold and aluminum tabs end with many reading that are the same depending on the alloy of the gold, poor quality control of the alloy of aluminum, and a round pulltab and round ring, plus the size and orientation of the targets in the soil. Throw in a little iron oxizes to skew the reading and you see why they often measure about the same. A large gold ring will read about the same as a tab while a small ladies gold ring will measure about the same as a nickel.
HH, Cody
 
Silver is best, then copper, then gold so gold is actually a highly conductive metal. Silver, copper, and gold are the best conductive metals in that order. Silver comes in at 105, copper at 100, and gold at 70 to 80 depending on the type of pure gold. Aluminum is about number four at 65. Copper is the standard at 100 which is why silver is 105. Gold has an is used becasue it doesn not decay and is highly conductive in a lot of electronic applications. It is also soft and easy to work. What messes with the reading is if the metals are alloyed with another metal which is often the case.
HH, Cody
 
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