In Subnautica 2, Celestine is a crucial mineral used for crafting various items, including the Tadpole Depth Module Mk. 1 and Axum Wall Lamp. To locate Celestine, players should navigate east from the Lifepod, specifically towards the Observatory, after crossing the Graveyard. It is recommended to utilize the Tadpole vehicle for quicker access, as the mineral is situated about 940 meters from the Lifepod signal. Players must dive down and follow the terrain slope to find Celestine ores. Caution is advised, as players may encounter Leviathans in this area; staying close to the ocean floor can help avoid detection. To successfully harvest Celestine, a Sonic Resonator is required, as each ore yields one unit of the mineral. This mineral is essential for crafting items at the Modification Station and Habitat Builder.