Perditio (entropy, chaos, destruction) is one of the six Primal aspects, which are the basic components for every other aspect. You can easily get perditio by deconstructing cobblestone at a deconstruction table.
Items containing Perditio:
|Item Name||Aspect Value|
|Entropy Infused Stone||?|
|Mixed Crystal Cluster||?|
This is an incomplete list. Please add to it.