Gold is not useful for electronics. That is a myth. Gold has been replaced by advanced metallurgy in electronics long, long ago. A little is used in some types of IC carriers, but it is so minute it does not justify the price. This is also a red herring since gold was valued long before electronics ever existed

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I thought tantalum was the new thing in electronics. Sure looks like gold to the average viewer.

Tantalum has been used in electronics for over 70 years. It's used in large quantities compared to gold. It's useful to miniaturize and improve longevity. There are many alternatives to tantalum, but given many factors, it's prefered in some cases.

Right on, I learn new stuff on here everyday

I'm pretty sure it's commonly found in electronics still. Not in large amounts, and I already agreed it's not enough to justify the price, but given it's still commonly found in electronics, it's still very much useful for electronics.