From Halopedia, the Halo wiki
Suban is one of the two massive natural satellites of Sanghelios, along with Qikost. Suban is reddish in color. The large size of both Suban and Qikost have great effects of the tides on Sanghelios.
Topography and ecology
The crystalline, raw material blamite, used in the ammunition of the Type-33 Needler and the Type-31 needle rifle, is mined from Suban. Veins of blamite are found throughout the moon's interior. Suban is the only known location of the material. Indigenous life includes qoerith slugs.
After the start of the The Reclamation, the UNSC Infinity set up a brief rendezvous on the far side of Suban with the remaining UNSC forces on the planet. Using the Pelican recovered from Genesis, they were able to reach Infinity in time.
List of appearances