The Bjordammen komerupine (Bamble, south Norway) occurs in an anthophyllite- cordierite bearing gneissic rock. The mineral has hematite inclusions which are mainly confined to cleavage zones. In the same area we also find aventurine feldspar and hematite bearing cordierite. The physical and chemical properties of the Bjordammen komerupine are discussed and listed below.
Kornerupine: a mineral new to Norway