These 3 chips gave 330 mg gold. Small 64 pin, remains weigh 4.95 grams and the large 114 pins Its remains weigh 11.25 grams.
Small one is 2.65 mm or 1-1/16 wide.
Large one is 3.5 cm or 1-3/8

The chip is 6 by 1.5 cm or 2-3/8 by ~9/16 and is 48 pin. Gave 7.1 grams of remaining ceramic.150 mg of gold.

The chip is 6 by 1.5 cm or 2-3/8 by ~9/16 and is 48 pin.2 mm thick as are the other similar chips. Gave 7.1 grams of remaining ceramic.260 mg of gold. I noticed some gold color suggesting some gold might have remained undissolved.

Got 400 mg gold from all 6 of these. They are 5 by 1.5 cm 40 pin.2 mm thick as are the other similar chips. Gave 5.150 grams of remaining ceramic and a bit of silicon each. All together 30.39 grams of remaining material. Dissolved material lost in processing is not included in weight.

No kidding these old chips were loaded.

11 mg gold from 25 pin.

5.170 gold from what looks like 30 of these 50 pin but the print is so faded I cant be sure if its 30.Very old mainframe using early ICs that look quite different from the ones of today.

30 mg of gold and its not much from 4 of these. Note that on newer connectors its common for just the tips to be plated gold so that less gold is used. I only removed the plated tips with a pair of scissors after smashing off the plastic and you can see this in the photo.

This is newer stuff so less gold is to be expected. Might be near to or later than 1980s or even 1990s.

I am very unsure about this also being 30 mg of gold because the label and my print is so faded. But I do remember it was poor. If its correct it's even poorer than the other similarly newer connectors. As pointed out above that on newer connectors its common for just the tips to be plated gold so that less gold is used. I only removed the plated tips with a pair of scissors after smashing off the plastic and you can see this in the photo.

Got 2.195 grams from these. They came from commercial equipment that had a large glass door and appeared to be involved in networking. Fiberglass leftovers weighs 285 g.
It has
31 of 9.75 cm
8 of 12.9 cm
8 of 8 cm
37 of 6.5 cm

These are the types of connectors one sees on the boards such as on computer hard drives. I assume they are the male because the gold plated pins are visible on the plastic connector.
My old label says I got 70 mg of gold from 1000 individual pins but the actual total of pins was 1404 so I must have estimated this amount for 1000 pins from that. Note that this is quite q bit less than for the female connectors and I don't know why.
Plastic was about 250 grams for the equivalent of 1000 pins. Weighing different sizes of connector gave different plastic to pin weights of much more than I would have suspected on the female connectors but I didn't bother weighing these ones and would not be surprised on similar results.

These are the types of connectors one sees on the cables that goes to computer hard drives. I assume they are the female because the gold plated pins are hidden in the plastic connector.
My old label says I got 400 mg of gold from 1000 individual pins but the actual total of pins was 1784 so I must have estimated this amount for 1000 pins from that.
Plastic was about 210.79 grams for the equivalent of 1000 pins. Weighing different sizes of connector gave different plastic to pin weights of much more than I would have suspected.
8 of 34 pin 27.4 g 272 total pins
19 of 26 pin 52.02 g 494 total pins
17 of 20 pins 37.3 g 340 total pins
15 of 10 pin 21.37 g 150 total pins
25 of 16 pin 48.55 g 400 total pins
5 of 50 pins 24.2 g 250 total pins

A remarkable amount of gold is sometimes used in relays. This one had abut 10.00 worth of gold when gold was about 500.00 an ounce. Wish I could remember how much it weighed. I soon noticed that some of these same relays stopped using that much gold. The photo is of one I kept that really did use the gold contacts
It was not pure gold but was of a high percentage of gold.

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