House Umber - Family members are known to be really big and tall, often over 7 feet. Very loyal, feud with the wildlings. House Karstark - Have Stark-blood in their veins, descendants of the Starks of Winterfell. Large in size and hot blooded.
The element Nickel (Ni) is one of the few ferromagnetic metals. Ferromagnetic means they are attracted to magnets and can be magnetized themselves. Most metals arenât magnetic with the exception of iron, nickel, cobalt, gadolinium, neodymium and samarium.
A non-ferrous metal is any metal that does not contain iron. Most of the time non-ferrous metals are a non-magnetic metal. If a magnet does not pull to the metal you are testing, it is a probably a non-ferrous metal. Non-ferrous metals are more valuable than ferrous metals and should be separated to get the most return for your metal. A couple of popular non-ferrous metals are copper, brass, and aluminum.