When woodcutting or excavating, 10% to not deplete the resource. When mining, +2% geode chance. When mining red or crystal sandstone, +10% chance to get double sandstone.
10% chance to mine an additional red/crystal-flecked sandstone which does not contribute towards the daily limit.
For Woodcutting and Archaeology, the aura can only activate when the resource is about to be depleted. For example, consider a tree for which each time a log is gained, there is a 20% chance that the tree is felled (depleted). When this check succeeds, the aura provides a 10% chance that the depletion will be ignored, and the tree will continue providing logs. Mining red/crystal-flecked sandstone (and trees that provide a single log) simply provides an extra resource when the aura activates.
In Archaeology, the aura only applies to material caches, as artefact excavation spots do not deplete. The aura has no effect when cutting elder trees, bamboo or golden bamboo. When the aura activates for an eternal magic tree, 30 seconds are added to the tree's duration, up to a maximum of 5 times.
The Refined perk provides the same effect for Woodcutting and Archaeology. Both the perk and the aura can trigger on one tree (in fact, the perk can trigger multiple times with or without the aura).
Resourceful aura now increases the chance to find geodes when mining and increases the chance to get double ore when mining Crystal-flecked or Red sandstone .