Sand Pockets

[Atreyo]

A large sand pocket takes 11 hits with a shovel to yield 6 sand units (plus unrefined salt with the related perk). However, the smaller pocket takes the same effort but yields half of that.

It makes sense for this system to follow suit on the rich stones for Geology, where larger stones take more pickaxe hits but also yield more stone at the end. If nothing else, both rely on the same Talent for extraction.