A magnet is a man-made object, made from minerals that are magnetic or iron that has been magnetized.
Lodestone, a variety of the mineral magnetite, displays strong magnetism. Some other minerals are weakly magnetic, or display magnetism when heated.
Hardness is better.
quartz
Magnetism involves iron.
magnetism
Magnetite is one of the few minerals that possesses the mineral property called magnetism.
only certain minerals display magnetism
Hardness test based on the Mohs Scale of relative mineral hardness, specific gravity, streak test for mineral color, classification of mineral crystal system, chemical analysis.
Melting point. Boiling point. Hardness. Crystal system(shape). Magnetism. Conductivity (heat and elecricity).
Tenacity, Density, Color, Streak, Luster, Magnetism, and Hardness
magnetism magnetism magnetism
Permanent magnetism is magnetism that is permanent. I think...