Gold is a metal material. Gold is a single form of chemical element gold (AU). It is a soft, golden, and precious metal. Internationally, gold is generally based on ounces. In ancient China, "two" was used as a gold unit, and it was a very important metal. The pure gold in nature is very small, often including silver, copper, iron, 钯, 铋, platinum, nickel, 碲, selenium, 锇 and other accompanimental elements. Natural gold contains 15%of silver in silver More than 20%of copper are called copper gold ore, 5%-11%of 钯 钯 钯 钯 钯 矿 矿 钯 铋 铋 铋 矿 矿 矿 矿. Gold has a pro -sulfur, often close to sulfide such as pyrine, poison sand, square lead ore, and 锑 锑 ore; it is easy to form metal mutual alternatives with sulfur and copper elements.
Gold is a metal material.
Gold is a single form of chemical element gold (AU). It is a soft, golden, and precious metal. Internationally, gold is generally based on ounces. In ancient China, "two" was used as a gold unit, and it was a very important metal.
The pure gold in nature is very small, often including silver, copper, iron, 钯, 铋, platinum, nickel, 碲, selenium, 锇 and other accompanimental elements. Natural gold contains 15%of silver in silver More than 20%of copper are called copper gold ore, 5%-11%of 钯 钯 钯 钯 钯 矿 矿 钯 铋 铋 铋 矿 矿 矿 矿. Gold has a pro -sulfur, often close to sulfide such as pyrine, poison sand, square lead ore, and 锑 锑 ore; it is easy to form metal mutual alternatives with sulfur and copper elements.