Orthorhombic Crystals were one of the resources (as well as Sicherite) which were mined on Aguerra Prime. The crystals were the source of the mineral, Thallium, which was used to produce the long-lasting Heim-drive Coil.

Appearances[edit | edit source]

The Chronicles of Riddick: Assault on Dark Athena (Extra Content: Aguerra)

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