When we're talking about what carry-on size is, a basic, safe guideline is that your bag should have a total dimension of 45 inches (115 cm).... that's height + width + depth. So, for instance, it could be... 20 x 15 x 10. ...or... 22 x 14 x 9. ...or some other combination up to 45 inches.
Hematite is a form of iron. It is found in Canada, Australia, Mexico North and South America, Africa, Europe, Asia, Greenland, the Pacific Ocean, Naha and Japan. hematite has also been found on mars.
Other minerals, such as magnetite, contain higher concentrations of iron, but hematite is so much more abundant that it is the most economically important iron ore. In North America, over 90% of our iron comes from hematite deposits and without hematite our steel-based society could not exist.