5. As treatment for liver cancer, because of its radioactive isotopes. Rhenium resources are identified in several countries, which include Chile, Peru, Armenia, Mexico, Russia, Canada, Kazakhstan, and Uzbekistan. The estimated total resource from these eight countries is 6,000 tonnes (6 million kilograms). A few also come in platinum though, including the American Platinum Eagle, the Canadian Platinum Maple Leaf, the Australian Platinum Koala, and the Manx Noble. Here's a quick rundown of each of these four platinum bullion coins: The American Platinum Eagle: The American Platinum Eagle bullion coins were first minted and released in 1997 by the United States Mint. Hillier found the nugget in a vertical position just a foot below the surface. The Hand of Faith weighs 874.82 troy ounces (60 pounds) and measures 1.54 feet (0.47 meter) x 0.66 feet (0.20 meter) x 0.30 feet (0.09 meter). The Golden Nugget Casino in Las Vegas, Nevada currently houses the nugget. Its sale price was reportedly around 1 million U. Trading in Gold Exchange-Traded Funds (GETFs): Trading in GETFs is like trading shares in, say, the New York Stock Exchange or the London Stock Exchange. Gold Bullion Securities, the first GETF introduced (in 2003, on the Australian Stock Exchange), stood for 1/10 of an ounce of gold. GETFs are a good means of gaining exposure to the price of gold, minus the inconvenience of storage. Jewelry (sterling silver is used in making fine jewelry and watches). 2. Silverware (sterling silver is also used in making utensils, tableware and ornaments). 3. Photography (silver nitrate and silver halides are used in making films). 4. Electrical and electronic products (silver paints are used in making printed circuits; silver electrical contacts are used in making computer keyboards). In earlier times, precious metals were mainly used as currency. Today, however, they are highly regarded as investment and industrial commodities. Four of them, in fact - silver, gold, platinum, and palladium -, are minted into coins or cast into ingots and traded on commodity markets. All four are assigned the ISO 4217 currency code.