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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium.

  3. List of bullion coins - Wikipedia

    en.wikipedia.org/wiki/List_of_bullion_coins

    Bullion coins are government-minted, legal tender coins made of precious metals, such as gold, palladium, platinum, rhodium, and silver. They are kept as a store of value or an investment rather than used in day-to-day commerce. [1]

  4. Gold bar - Wikipedia

    en.wikipedia.org/wiki/Gold_bar

    Central banks typically hold the standard 400-troy-ounce (438.9-ounce; 27.4-pound; 12.4-kilogram) Good Delivery gold bar in their gold reserves and it is widely traded among bullion dealers. Additionally, the kilobar, weighing 1,000 grams (32.15 troy ounces), and the 100-troy-ounce (109.7-ounce; 6.9-pound; 3.1-kilogram) gold bar are popular for ...

  5. Tungsten - Wikipedia

    en.wikipedia.org/wiki/Tungsten

    Naturally occurring tungsten consists of four stable isotopes (182 W, 183 W, 184 W, and 186 W) and one very long-lived radioisotope, 180 W. Theoretically, all five can decay into isotopes of element 72 by alpha emission, but only 180 W has been observed to do so, with a half-life of (1.8 ± 0.2) × 10 18 years; [36] [37] on average, this yields ...

  6. Gold as an investment - Wikipedia

    en.wikipedia.org/wiki/Gold_as_an_investment

    For example, if one owns a share in a gold mine where the costs of production are US$300 per troy ounce ($9.6 per gram) and the price of gold is $600 per troy ounce ($19/g), the mine's profit margin will be $300. A 10% increase in the gold price to $660 per troy ounce ($21/g) will push that margin up to $360, which represents a 20% increase in ...

  7. List of bullion dealers - Wikipedia

    en.wikipedia.org/wiki/List_of_bullion_dealers

    This list of bullion dealers includes notable companies and organizations that deal in precious metals, such as gold and silver. This list is incomplete ; you can help by adding missing items . ( September 2014 )

  8. Gold coin - Wikipedia

    en.wikipedia.org/wiki/Gold_coin

    Gold coins for sale at the Dubai Gold Souk. A gold coin is a coin that is made mostly or entirely of gold.Most gold coins minted since 1800 are 90–92% gold (22‑karat), while most of today's gold bullion coins are pure gold, such as the Britannia, Canadian Maple Leaf, and American Buffalo.

  9. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    Bullion coins' minting by national governments gives them some numismatic value in addition to their bullion value, as well as certifying their purity. American Platinum Eagle bullion coin One of the largest bullion coins in the world was the 10,000-dollar Australian Gold Nugget coin minted in Australia, which consists of a full kilogram of 99. ...