These special nodes drop up to 10 pieces of one item and seem to have no scavenge or harvest skill requirement.
On the map they appear with an icon of open orange chest with gold inside:
Although there seems to be no scavenge or harvest skill requirement, it is obvious that these nodes drop higher level items in higher level sectors. Icon of this node is used also for nodes generated from Harvesters and also for some nodes generated as reward from few World Events in Epsilon Zone. Same icon is used also for some special time events like Halloween or Xmas events.
So far there are 4 known treasure nodes:
- Chemical Plant (special position as it only drops mission items)