Katrishte

Katrishte is a term used within the fictional Cosmere universe created by author Brandon Sanderson, specifically in the Stormlight Archive series. It refers to a specific type of gemstone found on the planet Roshar. Katrishte gems are notable for their vibrant red color and their ability to hold Stormlight, a form of investiture that powers the various magical systems on Roshar. The quality and size of a Katrishte gem, along with its clarity and lack of inclusions, determine its value and potential use in fabrials and other technological or magical applications. They are considered valuable commodities and are sought after for various purposes ranging from ornamentation to powering complex machinery. Their prevalence and properties are tied to the unique geological and magical conditions of Roshar.