Blue Obsidian is the eleventh element mined on Earth. See also materials.
Blue Obsidian sells for $20,000 / unit and will start to occur at level 93 and achieve maximum at 399.
It was introduced in patch V0.25
It is used for:
Drill Blueprints[]
See on Blueprints and Category:Drill parts using Blue Obsidian
Other upgrades[]
See on Craft Center