Kyanite is one of the rarest and most important late-game resources in Subnautica 2. It is required for the cyclops depth module, the prawn suit depth module, and several advanced blueprints. Kyanite only spawns in the hottest, deepest biomes, so reaching it is a milestone that tests your vehicle upgrades and survival skills. This guide walks you through the entire process.
What Kyanite Is and Why You Need It
Kyanite is one of the rarest and most important late-game resources in Subnautica 2. It is required for the cyclops depth module, the prawn suit depth module, and several advanced blueprints. Kyanite only spawns in the hottest, deepest biomes, so reaching it is a milestone that tests your vehicle upgrades and survival skills. This guide walks you through the entire process.
Where Kyanite Spawns
Kyanite deposits are found almost exclusively in the inactive lava zone and the active lava zone at depths of 1200 m and below. The deposits are large, blue crystalline formations that grow on the walls and ceilings of lava caverns. You will not find Kyanite in any shallow or mid-depth biome, so do not waste time searching the shallows.
To reach the lava zones, descend through the lost river to the lava zone entrance, then navigate the molten corridors. Bring a fully upgraded Prawn Suit because the Seamoth and even the Cyclops struggle in the extreme heat and depth.
Required Vehicle Setup
| Upgrade | Why You Need It |
|---|---|
| Prawn Suit Depth Module MK2 | Survive the 1200+ m depth |
| Drill Arm | Mine the Kyanite deposits |
| Grappling Hook Arm | Navigate lava caverns and escape threats |
| Hull Reinforcement | Survive Sea Dragon attacks |
| Storage Module x2 | Carry the Kyanite you mine |
| Thermal Reactor (Cyclops) | Recharge near lava heat sources |
Step-by-Step Mining Process
Step 1: Upgrade your Prawn Suit to handle 1300+ m depth and equip the drill arm and grappling hook.
Step 2: Pilot the Cyclops to the lava zone entrance and dock the Prawn Suit inside.
Step 3: Descend in the Cyclops to the inactive lava zone, then switch to the Prawn Suit to enter the tight caverns the Cyclops cannot fit through.
Step 4: Locate blue Kyanite deposits on the walls and ceilings. Drill each deposit to collect multiple Kyanite.
Step 5: Watch for the Sea Dragon Leviathan. If it appears, grapple away and hide behind rock pillars until it loses interest.
Step 6: Return to the Cyclops, offload the Kyanite, and repeat until you have enough for all your blueprints.
Safety Tips for the Lava Zones
- The Sea Dragon Leviathan is the biggest threat. Use its roar as an early warning and keep terrain between you and it.
- The Cyclops thermal reactor module recharges your power cells near lava, so park near heat to refuel.
- Bring a repair tool and spare health kits; the Prawn Suit takes chip damage from heat and creature attacks.
- Never go alone without a docked Prawn Suit; swimming in the lava zones is suicide.
- Mark the entrance with a beacon so you can find your way back to the Cyclops.
What Kyanite Is Used For
Kyanite is used for the deepest depth modules (Cyclops MK3 and Prawn Suit MK2), the ion battery, ion power cells, and certain story-related blueprints. Because each recipe needs several Kyanite, plan to mine at least 15-20 on your first trip. Kyanite deposits respawn, so you can return for more if needed.
More Subnautica 2 Guides
- Where to Find Seamoth Blueprints and Fragments in Subnautica 2
- Top 5 Best Base Locations in Subnautica 2
- 7 Best Fish for Food and Bioreactor Fuel in Subnautica 2
- Cyclops Blueprint Fragment Locations Guide for Subnautica 2
- How to Get the Nuclear Reactor Blueprint in Subnautica 2
- Best Cooked Recipes for Hunger and Water Restoration in Subnautica 2