hardness of magnetite compared to haematite
Hematite Mineralogy Geology | eHow. Magnetic Hematite Vs. Hematite Mineralogy Geology.,On the Moh's scale of hardness, hematite is around 5.5, which means you can scratch it with a steel nail. Read more. Magnetite: Magnetite mineral information and data. Magnetite is an important iron ore, along with hematite . Nanoinclusions of,Hardness (Vickers):How to Make Your Own Permanent Magnets | eHow,The Earth’s magnetic field alone is capable of weakly magnetizing the steel nail, without use of the loudspeaker magnet. Choosing a strong ferromagnetic material to magnetize will yield better results. Warning. Children must have adult supervision when doing this project. Magnets are capable of erasing magnetically stored data on such things as video tapes, hard drives andHow Can I Make Homemade Borax? | eHow,Borax is made from hydrated sodium borate minerals found in a variety of locations. It is typically white or clear in color, though it sometimes has colors like brown and yellow as well. When dehydrated, borate minerals take on a white, chalky appearance.