1 thought on “What are the gold recovery methods?”

  1. The first type: Old gold jewelry is sold, and it is a very good choice to buy new gold jewelry to sell old. Especially for brand jewelry shops. For the old replacement, it usually only pays 15 yuan to 30 yuan per gram. The boutique fee is 15 yuan to 20 yuan. The current market is about 400. The finished product ranges from 500 to 550. These two conditions are met at the same time, so it is the best way to sell old gold jewelry and directly buy new gold jewelry. There is no problem with how many grams of new jewelry must be selected. Even if you do n’t buy gold, you do n’t have any problems to buy money or diamonds. There is no restriction on your desire.
    The second type: This is most of the choice with the old replacement. The advantages are obvious. It is simple and fast. It eliminates the sale of old gold jewelry. The trouble of buying new jewelry, a shop can get it. Disadvantages: Must be replaced with old jewelry grams
    Extension information:
    Gold jewelry refers to jewelry made of gold as the main raw material. The chemical symbol of gold is AU, with a gravity of 17.4 and Mo's hardness is 2.5. Gold jewelry can be divided into two categories: pure gold and K gold in terms of gold content.
    The gold jewelry has a gold content of more than 99%, up to 99.99%, so it is also known as "nine nine gold", "full gold", and "red gold". In order to overcome the shortcomings of high gold price, low hardness, single color, easy wear, and unspoken pattern, some other metal elements are usually added to pure gold to increase the hardness of jewelry gold and change its tone and reduce its melting point. The gold -alloy jewelry with different color heights and obviously different gold content, the term "karat" is crowned. The K gold system is the international popular gold metering standard. The complete statement of K gold is "Krat Gold" and gives K gold with accurate gold content standards, thus forming a series of K gold jewelry.
    In gold jewelry, the pure gold jewelry texture is soft, the teeth are bite, and it is easy to bend. The color is golden, pure, soft, heavy, and feels heavy. K -gold's head jewelry texture is slightly harder, the teeth bite the use of mintes, the color is yellow in yellow, and the number of K is reduced, the white increases, and the yellow is shallow. The feel of K gold jewelry is not as heavy as pure gold jewelry. In addition, both pure gold and K gold jewelry have a printing sign.
    The printing on the gold jewelry is useful "gold" and the "KG" English letters represent the texture. When indicating the gold content, the word "99" or "24K" indicates that it is pure gold jewelry. The K gold jewelry is marked with the corresponding K number, such as the K gold jewelry marked "18K". %. In addition, the jewelry also marks the printing of the origin of different manufacturers. Really gold jewelry, printing standards, completeness, and clear, is an important identification of judgment.
    The types of jewelry that is easy to confuse with gold jewelry, some are gold -plated jewelry, some are gold jewelry, some are copper jewelry, and some are copper alloy jewelry.
    The gold jewelry has many appraisal methods. The Chinese folk summarizes a set of simple methods. The formula is: look at color, 掂 weight, listening rhyme, folding hardness, stone grinding, contrast cards, acid dots, and color. The first four sentences depends on the eyes and the feeling; the latter four sentences need to be used by tools and reagents.

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