Lumenite is a material that was used for building Lumenaria when the Ancient Councillors built it. It does not burn, even with Everblaze, so it is also used for bottling said substance when necessary.

However, in Lodestar, the Neverseen find a way around that, using Gethen to collapse the Lumenaria castle using outward channeling during the Peace Summit, killing Mr. Forkle.

In Candleshade, Keefe says there is a giant statue of his father, Lord Cassius, made of Lumenite.

Fintan Pyren was once held in a Lumenite prison for a short period of time.