Colored gold, also known as colored gold, has high hardness and various colors. The texture of colored gold is generally 18K gold (with a gold content of 75%). Colored gold ornaments are becoming more and more popular because of their light weight, slightly lower price, exquisite workmanship and novel style. How about the lottery price? The more exotic the color, the more expensive it is. How about the lottery price? Since lottery gold is 75% gold, the daily price of lottery gold also changes according to the gold price of the day. No matter in shops or shopping malls, lottery tickets are sold by the piece, that is, by the finished product, not by the gram. In addition, according to the different colors of colored gold, its price is also different. The more exotic the color, the more expensive it is. According to the current gold price, the price of one gram of rose lottery gold is around 200 yuan. The price of one gram of black lottery gold is around 230 yuan. The price of a gram of blue lottery gold is around 250 yuan.
Palladium, a member of the platinum group, has the element symbol Pd, which is similar to platinum in appearance, silvery white metallic luster and bright color. The specific gravity is 12, which is lighter than platinum and has strong ductility. Melting point 1555℃, hardness 4-4.5, slightly harder than platinum. Chemical properties are relatively stable, insoluble in organic acids, cold sulfuric acid or hydrochloric acid, soluble in nitric acid and aqua regia, and it is not easy to oxidize and lose luster under normal circumstances. Palladium is one of the rare precious metals in the world. In 2008, the global total output of palladium was similar to that of platinum, accounting for less than 8% of the total output of gold. (Source: Platinum and Palladium Yearbook 2009) Palladium, platinum, gold and silver are all international precious metal spot and futures trading varieties, and their prices were once higher than platinum in history. Palladium is a non-renewable scarce resource, and its future value will be gradually reflected with the deepening of mining and the improvement of market demand. 2015 65438+February 12 palladium quotation is RMB 1 1 80 cents per gram, which is lower than the average lottery price.
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