Dark Sentinel Crystal

Unknown[Metroid Prime]

Metroid Prime

The original Sentinel Crystals were durable, but they had their limits. The toxic nature of Dark Aether, coupled with constant attack from the Ing, destroyed many of them. The Luminoth responded with the Dark Sentinel Crystal. Sheathed in dark energy, it is more resistant to the atmosphere of the Ing homeworld - and the attacks of its denizens.