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  "description": "The deep-water deposits, biomes, and tools you need to harvest this strontium-rich crystal.",
  "path": "/where-to-find-celestine-in-subnautica-2/",
  "publishedAt": "2026-05-15T10:44:38.000Z",
  "site": "https://allthings.how",
  "textContent": "Celestine is a raw crafting material in Subnautica 2, valued for the strontium it yields once processed. It shows up as blue crystalline clusters embedded in rock walls and seabeds, and you'll need it for several mid- and late-game items, including the Tadpole Depth Module Mk. I and the Axum Wall Lamp.\n\n🔵\n\nQuick answer: Head east of the lifepod into deeper waters and search the regions around the alien power plant, the alien observatory, and the metal farm. Celestine appears as clusters of blue crystals on rock walls and the seafloor.\n\n* * *\n\n### Where Celestine spawns\n\nThe richest Celestine deposits sit in the eastern sector of the map, clustered near three alien sites. You'll find the blue crystal nodes attached to rock faces and scattered along the seabed in these zones. Travel east from the lifepod and descend; the surrounding terrain shifts to deeper, darker water with large rock formations where the deposits concentrate.\n\nLocation| Direction from lifepod| Notes\n---|---|---\nAlien power plant area| Far east| Dense Celestine, also yields Conduit Crystal and Enamel nearby\nAlien observatory area| East| Reliable nodes along rock walls\nMetal farm| Northeast| Celestine clusters alongside Axum Bacterial Culture and Troilite\n\n* * *\n\n### How to harvest Celestine\n\nCelestine nodes come in the standard three sizes used for mineral resources in the game. The size determines what you need to break them and how much material you receive per node.\n\nNode size| Tool needed| Yield\n---|---|---\nSmall| Pick up by hand| 1 Celestine\nMedium| Any tool (Scanner works)| 2 Celestine\nLarge| Sonic Resonator or Feedback Resonator| 1–5 Celestine\n\nFor the larger clusters that yield the most material per hit, you'll want the Sonic Resonator blueprint crafted before making a dedicated run. Smaller deposits on rock walls can be cracked with whatever you have in hand, including the Charge Blast Shield style tools available early on.\n\n* * *\n\n### What Celestine is used for\n\nCelestine is processed into Strontium through the Processor, which unlocks once you scan your first Celestine node. Strontium feeds into deeper-tier crafting recipes. The raw crystal itself is also a direct ingredient for a handful of items.\n\nStation| Output\n---|---\nProcessor| Strontium\nModification Station| Tadpole Depth Module Mk. I\nHabitat Builder| Axum Wall Lamp\n\nThe Tadpole Depth Module is the practical reason most players make the trip east. It extends the operating depth of the Tadpole vehicle, which in turn lets you reach the deeper biomes where higher-tier resources live.\n\n* * *\n\n### Preparing for the run\n\nThe Celestine zones sit well below the safe shallows and the routes pass through low-visibility water. A few preparations make the trip much smoother.\n\n**Step 1:** Repair the Tadpole if you have not already. The vehicle handles the descent east of the lifepod far better than swimming, and you'll find one in a damaged state that needs patching with a repair tool.\n\n**Step 2:** Bring oxygen reserves and a beacon. The deposits hide in dark crevices and along cave walls, and you'll lose track of your route quickly without a marker.\n\n**Step 3:** Equip a tool that can break medium nodes. Your Scanner is sufficient for two-yield deposits if you don't have anything stronger ready. For large clusters, craft a Sonic Resonator first.\n\n**Step 4:** Scan your first node. Doing so synthesizes the blueprint for Strontium and registers Celestine in your PDA, which is what makes the Processor recipe available.\n\n* * *\n\n### What Celestine looks like in the world\n\nThe crystals glow a saturated blue and grow in jagged clusters from rock surfaces. They are easy to mistake for Calcite at a distance, which appears as similar blue crystal formations but registers under a different name when you aim a tool at it. Always check the on-screen label before harvesting if you're trying to fill a specific recipe.\n\nThe in-game databank describes Celestine as strontium sulfate (SrSO4), formed from the shells of microorganisms that synthesize it as ballast. The Strontium it produces on this planet contains elevated Strontium-90, so the PDA flags it as unsafe to ingest. That detail is flavor rather than mechanics, but it does explain why the material slots into power and radiothermal-adjacent recipes.\n\n⚠️\n\nNote: Celestine and Calcite both appear as blue crystal clusters but are separate resources. If your harvest doesn't add to your Celestine count, you likely hit a Calcite node instead.\n\n* * *\n\n### Confirming the harvest worked\n\nYou'll know Celestine collection registered when the item appears in your inventory with the description \"Local source of radioactive Strontium. Burns brilliant red.\" Scanning a node for the first time triggers a \"NEW BLUEPRINT SYNTHESIZED\" notification and unlocks Strontium in your Processor recipe list. If neither of those happens after harvesting a blue crystal, recheck the item name on the node, which should read Celestine and not Calcite or Quartz.",
  "title": "Where to Find Celestine in Subnautica 2",
  "updatedAt": "2026-05-15T10:44:40.385Z"
}