Raw materials

Ruby

Al₂O₃. Hard, conductive gemstone composed of aluminum oxide.

Depth 152–716 m

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Found loose in: Tree Spires ≈138 · 225–456 m Crystal Caverns ≈117 · 638–716 m Lily Pads ≈67 · 226–494 m East Iceberg Zone ≈19 · 308–496 m Koppa Mining Site ≈15 · 152–327 m

Used in (5)

Aerogel

Prawn suit depth module MK1

Seatruck Depth Upgrade MK2

Seatruck Perimeter Defense Upgrade

Synthetic fibers

Databank

Ruby

A hard, blood-red gemstone, made of aluminum oxide. Rubies may be processed in order to leverage their structural integrity in advanced vehicle construction and modification.

Assessment: Essential for advanced fabrication

Below Zero data: build 53872 (Oct 2025)