Ruby (Subnautica)

Aluminum Oxide Crystal is a raw material commonly found throughout Grand Reef and Sea Treader's Path. Its in-game description notes that it is used for heat and electricity conductivity.

Appearance
The current Item's icon shows a reddish-pink crystal. The actual item is a white rock with four short bright red spikes emitting a small amount of bioluminescence.

Future Plans
The current model used for Aluminium Oxide Crystals is a placeholder.