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.
Magnetic hematite is not a true hematite in terms of its mineral content. Actually a man-made magnetic material, the content of magnetic hematite varies between manufacturers. The Mineralogy Database found that one sample was a synthetic ceramic barium-strontium ferrite magnet..