Non Ferous Metals.
Mercury (but of course!)
Tin is one metal which cannot be specifically put under either ferrous or non-ferrous category. Although it does not have any iron content, it does exhibit paramagnetic (white tin) and diamagnetic (gray tin) properties. Also, it does not rust like iron. In case you’re wondering what made me mention gold in this list, let me tell you that gold in its purest form is NEVER ferrous! Only when ferrous impurities get introduced to the alloy does gold show certain, very slight ferrous properties.
Alloy metals such as Duralumin (which is composed of a combination of copper and manganese in a 4:1 ratio besides aluminum), brass (which is 35% zinc and 65% copper) and Gliding metal (an alloy of 15% zinc and 85% copper) are some of the most prominent non-ferrous metal examples that are made by combining two or more other non-ferrous base metals. All these alloys share the same two basic non-ferrous qualities with their base metallic components – indifference towards magnets and resistance to corrosion.