A lot of resources in Subnautica 2 are simply off-limits because of their location; some are too far from what you would call a base, whereas some are tantalizingly nearby, but far too deep to gain access to without some significant upgrades. Conduit Crystals are part of the latter group, and can only be mined with improvements to your craft, or some seriously risky dives. Upgrading your equipment is a key part of Subnautica 2 if you want to survive the increasing harshness of your surroundings - and you won't get very far in the survival game without Conduit Crystals. Key ingredients in both the Resonator and Scanner upgrades, this is one material you should keep your eye out for at all times.