[dighton]

“The mystery is that they were all made of the same material.”

Platinum-iridium, no big deal. Once our gold gets magicked away, one microgram at a time, we are finished.

[SteveMcKing]

Given that atmospheric platinum is measurable due to catalytic converters, my first guess is that it’s plain old sublimation at work.

Are they stored under vacuum by any chance?

[Thinkin' Gal]

Once our gold gets magicked away, one microgram at a time...