What property is zakatable and what are the zakat rates?

One must pay zakat annually on the following items when in possesion at both ends of at least one lunar year: Gold and Silver: Gold exceeding 87.479 grams (about 0.2 lbs) at 2.5% (or 1/40th), in gold or its cash equivalent; Silver exceeding 613.35 grams (about 1.35 lbs) at 2.5%, in silver or its cash equivalent; includes all forms of gold and silver jewellery; Cash and other exchangeable monetary instruments exceeding the equivalent of the silver nisab at 2.5%; Tradable goods: Tradable goods such as stocks, inventory and merchandise for resale that exceed the equivalent of the silver nisab at 2.5% if the goods were bought with silver or a monetary instrument (e.g. cash, stock, goods); or exceeding the equivalent of the gold nisab at 2.5% if the goods were bought with gold.