Where to Find Magnesium in Subnautica
You gotta craft magnesium using salt deposits! Three salt deposits get you one magnesium, so start scavenging around the Safe Shallows and Kelp Forest.
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Magnesium doesn't just grow on trees鈥攚ell, it doesn't grow at all. You need three salt deposits, and you can usually find those hanging around in the Safe Shallows.
Salt Deposits usually found in Safe Shallows or Kelp Forest. Combine 3 to get magnesium!
Finding magnesium takes a bit of effort. Look for salt deposits in the Safe Shallows or Kelp Forest, then craft it at the fabricator.
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