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Thanks for your reply. Good to know about the toxicity of the ceramic. Nice pictures. And. Again. Thanks for a detailed response.
Here to learn like everybody else.

The printer boards have gold wires that are exposed, been collecting those for awhile. Figure this might be the easiest way to get a button of gold without much effort (or chemicals) though it will take a fair amount of time.

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Here to learn more so I can recycle more
My grades are my own opinion and not an official grade from Boardsort

Exactly mark! The same with the little nodes/dies of Rhodium on the ends of older HDD readers.

Cat, You could start your collection if wanted. You might need tiny little clippers or hair scissors but it's fairly easy to collect them; just don't drop it. They're kinda hard to find! haha! Needle nose tweezers work well.

Inside some ceramic produced PCBs they use small amounts of beryllium, BeO to be exact. High thermal capabilities or something. The same as lead, mercury, cadmium, if you break/cut/crush, or burn, don't inhale the dust and fumes.

Cautious as always just be logical.

Crystal oscillators used to use cadmium for a piezoelectric effect. Got to be careful of those old units too. Regulated in consumer but higher concepts, still use it.

I use reverse action tweezers (self closing)

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Here to learn more so I can recycle more
My grades are my own opinion and not an official grade from Boardsort