This glittering fragment is from the solar sail of a starship. It's not much more than a shiny trinket alone, but with some skill it can be used to craft powerful technology.
A recipe that uses this item is not yet available. Feel free to sell this back to the bank for Gold.
Concept by https://www.paperdemon.com/app/u/Shyftlock
Art by https://www.paperdemon.com/app/u/Yanang