On Østre Brandsfjell in Lierne, at the border of Blåfjella-Skjækerfjella National Park, there is one of Norway’s largest deposits of the mineral Thulite. In order to reach the deposits it takes a 7 kilometer long trek through bogs and mountain terrain.
It is named after the mythical region of Thule, which many identify with Norway. The color of Thulite is caused by the element manganese in its composition. Thulite often occurs associated with Quartz, and is sometimes mottled with streaks or spots of white Quartz.