Aura (Thaumcraft 5)

Aura is a mechanic added by Thaumcraft 5. The aura contains magical energy called Vis that is stored in each chunk. Each Primal Aspect can be found in the aura, as well as Flux.
The base amount of Vis the Aura contains in a chunk depends on the biome. For example: there's more Aqua Vis in Ocean biomes, more Ignis Vis in Desert biomes, more Terra Vis in Jungle biomes, etc.
Additionaly, Aura Nodes replenish the aura of the chunk it is located in with the Vis of its type. Aura Nodes can only be seen while wearing Goggles of Revealing. Each Aura Node has a specific type with varying effects.
==Types of Aura Nodes==
===Normal Nodes===
Normal Nodes are the most common type of Aura Node. They have no special properties.
===Astral Nodes===
Astral Nodes are sensitive to light; the brighter the spot is where the Node is located, the faster they replenish the aura.
===Sinister Nodes===
Sinister Nodes are sensitive to darkness; the darker the spot is where the Node is located, the faster they replenish the aura. Additionally, Sinister Nodes will slowly convert the area around them into an Eerie biome, which allows Pechs to spawn.
===Hungry Nodes===
Hungry Nodes, rather than replenish the aura, drain the aura instead.
===Pure Nodes===
Pure Nodes will drain Flux at the price of becoming smaller. They have a chance to appear in Silverwood Trees, naturally generated or grown.
===Tainted Nodes===
Tainted Nodes work like Normal Nodes, however, they occasionaly release Taint into the world.
===Unstable Nodes===
Unstable Nodes work like Normal Nodes, but occasionaly change to a different Primal Aspect.
==Aura Node Merging==
Nearby Aura Nodes move towards each other and merge. The merged Aura Node has a combined Vis, and usually takes on the Aspect of the larger Aura Node, or a combination of the two.
==Thaumonomicon entry==
Category:Thaumcraft 5