This magnetite specimen is from Iron Mountain in the Iron Springs District, Iron County, Utah, USA. This locale is mined for its iron minerals that include magnetite, hematite and iron oxide minerals. There are also numerous copper minerals found there. Iron Mountain is well known for the massive, “loadstone”, deposits as well as the well defined and fairly large magnetite crystal found there. This is an oxide mineral that contains the elements Fe and O. This piece is exceptional because it is made up entirely crystals with spinel twinned habits. It measures 1 5/8 x 1 x 5/8 inches or 41 x 25 x 16 mm.