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.
Magnetite may be mistaken for the more metallic varieties of hematite, and to make matters worse, the two commonly occur mixed together. Pure samples of the two can be distinguished because magnetite is magnetic, while hematite is not. Some hematite samples, however, do contain enough magnetite that they are weakly magnetic, so it is always a good idea to check a magnetic sampleâs streak by scratching the sample across a white ceramic plate.