Sikkim. Sikkim is a mixture of gold, silver, copper, nickel, zinc and other metals, while gold is a pure metal, mainly composed of gold, and may also contain a small amount of other metals such as silver. Its hardness is similar to that of gold, but it does not have the chemical properties of gold such as fire resistance and oxidation resistance, but it is very cheap because of its low cost. Details are as follows:

1, color and appearance: Sikkim is usually dark in color, with some red or silver, with obvious metallic texture and obvious texture; The color of gold is typical gold, moist and high gloss. The higher the purity, the purer the gold.

2. Hardness: Sikkim is harder than gold and can be cut by tools; Gold is soft, with a hardness of only 2.5-3, and it is easy to bend or deform.

3. Chemical properties: Gold is a very stable metal, which is not easy to be oxidized or corroded; The stability of Sikkim is poor, and it is easily influenced by air or other substances, and problems such as spots or discoloration may occur.

4. Price: Sikkim is much cheaper than gold, and is generally used as jewelry, and the price is about 15 yuan one gram; Because of its high value, gold is widely used in investment, storage and jewelry manufacturing, and the price is about 500-600 grams.