2 thoughts on “How many categories are there in gold?”

  1. 1. Gold can be divided into foot gold, and thousands of gold;
    The gold and thousands of gold represent the purity of gold,
    thousands of gold is the highest purity (generally there are marks such as 999 9999)
    The tags of platinum are PT, but PD is gold, which is cheaper than platinum.
    , such as the PT950, the front PT indicates that it is made of platinum. R n The current platinum is 990, which improves the purity.

    . Humans already knew gold as early as 6000 years ago and used gold as decorations. In today's international and domestic markets, gold jewelry in the international and domestic markets mainly includes pure gold, K gold, gold plating, gold -packed, imitation gold and color -changing gold and other products.

    It pure gold jewelry is made of pure gold. As the saying goes, "Gold has no redness", that is, the content of pure gold is less than 100 %. In fact, the gold content of 99 % and 99.9 % is called pure gold products. This pure gold jewelry texture is soft, colorful, and never color. But it is easy to deform, easy to wear, and cannot inlay various exquisite gems.

    k gold adds a small amount of silver, copper, zinc and other metals to gold to enhance the strength and toughness of gold. In order to represent the gold content in K gold, K value is often used. The gold content of 1K is about 4.166 %. The gold content of 24K is about 99.99 %, so it is pure gold.
    k gold jewelery style is easy to refurbish, which can inlay various diamonds, green, pearls, treasures, and carvings. The diamond ring inlaid with 18K gold is used. The golden pen tip reads "14K" or "14", which means that this golden pen tip is 14K gold.

    The gold -plated jewelry is plated on the surface of jewelry made of copper, silver or alloy, a layer of 24K gold, and its appearance is the same as pure gold jewelry. But the plated metal is not durable, and it will be worn after long wearing.

    Bacin jewelry is wrapped in gold foil on the surface of jewelry made of aluminum, zinc, and lead alloys, and then heated, use tools to firmly press the gold foil firmly to press the gold foil firmly. Made in product. The texture of the gold jewelry is harder than the pure gold jewelry, it is not easy to deform, and the abrasion resistance is strong. On the surface, it is comparable to the jewelry of 24K gold.

    It -made gold jewelry is a special plating process, which is made of approximate K gold jewelry. This kind of jewelry is made of copper, zinc, or aluminum metal as raw materials to make semi -finished products, and then put into a special plating solution. After treatment, a layer of red and yellow -like plating like gold is plated on the surface.
    Although this jewelry does not contain a little gold, it looks like a pure gold product. Trimming gold jewelry is a novel jewelry made of K gold materials after specially processed. If the drill atom is injected into the K gold surface, a beautiful blue can be presented; plating a very thin metal particles on the surface of the K gold can show black.
    This also developed a dazzling purple alloy jewelry with a gold content of 78 % and 22 % aluminum content. Now, red, yellow, white, purple and other colors have entered the K gold family.

  2. What are the varieties of gold? How to correctly distinguish the type of gold, see if you understand
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