Consume

You'll get I'm sure these play a Critical Role for the first one you find, and then you need to find 150 for this achievement. There's approx 300 in the world in total so this is around half of them.

The easiest way to keep track is at the satisfactory-calculator.com interactive map - you can upload your save file and items already found will be greyed out on the map so you can instantly see what's left to find.