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Promethium is the Seventh moon element. It sells for $800,000,000 and is found at and below depths 1462 (W2-430), and will be mineral rich below depths 1517 (W2-485).

Promethium.png

It is a requirement for the Reaction Mass Engine T2, Regolith Agitator Drill T2, Regolith Agitator Drill T3, Thermal Balancer T2

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