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The Coppermind has spoilers for all of Brandon's published works, now including Tress of the Emerald Sea and The Frugal Wizard's Handbook for Surviving Medieval England (Secret Projects One and Two). Information about books that have not yet been released, like the other secret novels releasing in 2023 and Stormlight 5, is allowed only on meta-pages for the books themselves. For more details, see our spoiler policy. To view an earlier version of the wiki without spoilers for a book, go to the Time Machine!

World Alornia
Universe Wode States
Featured In Perfect State

He crossed the floor, which sparkled with twisting churnrock--a type of stone that changed colors with pressure.

Kai, about Besk in the portal room[1]

Churnrock is the name of a mineral found on Alornia. It has the property of changing colors under physical pressure. It was gifted to Kairominas by the Larkians, and used to line the floor of his portal room. It was placed there because the shifting colors unsettle Kai's stomach, and he rarely uses the portal room.[1]


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Chaos2651 (talk) 09:27, 16 June 2018 (MST)