Copper and silver, as native metals, are also contenders, and less rare. To the alchemist, gold was associated with the sun, whose name and symbol were adopted for it. The yellow of gold is an orangish-yellow, not a bright cadmium yellow, a complex color that has its distinctive name.f there is 20%-40% silver, the alloy is called electrum. Incidentally, alloys in which gold predominates still have the properties of gold, including its resistance to corrosion, but are harder and of lighter color. Electrum may be white like silver, but will not tarnish.
Common Causes of the Ammonia Smell in Urine. 1  Diet - A person's diet may contribute to the ammonia smell in urine. 2  Dehydration - In addition, dehydration can also cause the ammonia smell in urine.  Liver damage - This may also cause an ammonia smell in urine, because the liver is responsible for removing and breaking down ammonia.
Several factors may contribute to what causes urine to smell, and most of them mean you should consult your doctor, according to the National Institutes of Health. The reasons your urine has a strong odor include: -Foods, medications and vitamins can all potentially cause your urine to smell. For example, eating asparagus or pineapple can both change your urine's odor in different ways.