A well exposed and sizable (3.7 CM) sharp Franklinite octahedron on Calcite. Old specimen, this Franklinite is quite attractive (for a black mineral) with a good bit of luster on most faces. There are some contacts and bruises as seen on mostly back and sides but still much better than average for this brittle mineral. Good specimens of Franklinite have become very scare and are only available from older collections. This one, despite the rough spots is very fine for the specie.