gold |
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Difino
| • | Gold is a chemical element in the periodic table that has the symbol Au (L. aurum) and atomic number 79. A soft, shiny, yellow, dense, malleable, ductile (trivalent and univalent) transition metal, gold does not react with most chemicals but is attacked by chlorine, fluorine and aqua regia. The metal occurs as nuggets or grains in rocks and in alluvial deposits and is one of the coinage metals. For millennia, gold has served as money and is also used in jewelry, dentistry, and in electronics. Gold forms the basis for a monetary standard used by the International Monetary Fund (IMF) and the Bank for International Settlements (BIS). Its ISO currency code is XAU. Source: [wikipedia: gold] |
metallic_deposits:rocks_and_minerals
| Goldvault | ||
| photo journal of a small gold mining operation, including assaying, milling, mining, processing and concentrating. | ||
| Klondike Gold | ||
| photos and facts on gold nuggets from around the globe. | ||
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