To check minerals with a weak magnetism can do like this: ...

Description: To check minerals with a weak magnetism can do like this: leave one of these magnets standing on the edge on a flat and horizontal table, will be oriented instantly pointing to N - S with the axis through the center of its two circular faces. It's like a very fast compass. To check light paramagnetic attractions, put the magnet on a table as explained and approach the mineral to make contact. Now try to drag the magnet pulling the mineral, not pushing. Thus, as the force required to roll the magnet is very small, even light attractions become evident. Here checking an Epidote from Mali.