Pyrrhotite, mineral specimens which were collected by staff from Evje, Southern Norway, it is a grey coloured mineral with a metallic lustre which can dull upon exposure to the air. Along with magnetite, they are the only two minerals which are also noticably magnetic. These particular specimens are only available in 2" x 2" size pieces and stock is now limited. The samples have a blocky texture and are fairly dense as they are an iron sulphide mineral. Available in various sizes and come supplied in a white card tray with an information label.