Aluminum (Al), also spelled aluminium, chemical element, a lightweight silvery white metal of main Group 13 (IIIa, or boron group) of the periodic table. Aluminum is the most abundant metallic element in Earth’s crust and the most widely used nonferrous metal.

Magnetic shielding refers to the attempt to isolate or block the magnetic field of the MRI magnet. This can be done to prevent unwanted interference from the MRI magnet on nearby electronic devices.

In our everyday experience aluminum doesn’t stick to magnets (neither does copper). Most matter will exhibit some magnetic attraction when under high enough magnetic fields. But under normal circumstances aluminum isn’t visibly magnetic.

In their natural states, metals such as aluminum, brass, copper, gold, lead and silver don’t attract magnets because they are weak metals. However, you can add properties such as iron or steel to the weak metals to make them stronger. Adding even a small quantity of iron to a metal such as silver makes it magnetic.

You can fashion the aluminum into a tube, and drop the magnet through it. Eddy currents will produce a magnetic field that slows the magnet down, i.e. sticking to the magnet somewhat.

Look for signs of shiny, silvery colors with metals that are softer and more flexible than other metals. If you see these characteristics, you may have aluminum. Check your metal by applying the magnet test again if you suspect that the metal is aluminum.

HEALTH EFFECTS Static magnetic fields exert forces on moving charges in the blood, such as ions, generating electrical fields and currents around the heart and major blood vessels that can slightly impede the flow of blood.

Water is almost completely non-magnetic, so magnets work underwater the same as they do in air or in a vacuum. Magnets involve force. Magnets underwater work like they do above ground—if they find something they’re attracted to, the force between them pulls them together.

Low Blood Pressure and Nervous System: Magnetized water is also very beneficial for nervous disorders and treatment of blood pressure, especially low blood pressure. It gives a soothing and slightly sedative effect to the nerves, aids in clearing clogged arteries, and normalizes the circulatory system.

Water is “almost completely non-magnetic,” which means the same thing as “too small to make a significant difference”or as “very little magnetism.” There’s a nice Wikipedia article on “diamagnetism” , which mentions the diamagnetic strength of water.