The main differences between Shajin and ** are in the following aspects:
1.Definition with **:
*(Gold): The chemical element AU, is a rare and valuable *** that is a vivid golden yellow color when present in its pure form. It can be extracted from ore or found in alluvium or in its natural state.
Alluvial gold or placer gold: It is an unrefined form of **, usually found in the bottom of rivers, streams, or other sediments, mixed with impurities such as sand, gravel, and soil.
2.Purity & Gold Content:
*The standard purity of jewellery or investment gold bars is very high, and the pure gold content commonly found in the market is 999%, pure color and soft texture.
Sand gold contains a large number of impurities, and its gold content is generally much lower than that of pure gold, which may vary from 2%-5% to about 10%, so the color of sand gold is lighter, the hardness is higher, and it is not easy to deform.
3.Physical Properties & Appearance:
The hardness of pure ** is low, easy to scratch, but strong corrosion resistance; The hardness of sand gold is relatively high due to the large number of impurities.
Sand gold needs to go through a series of purification processes such as washing, separation, and smelting before it can be converted into high-purity **.
4.* With the way of sale:
*Products have clear standards according to different purities, usually priced in grams, and according to the international market gold price changes.
Due to its unrefined nature, sand gold is usually not priced according to purity, but is sold in jewelry pieces, which are often much lower than those of pure gold jewelry of the same volume.
In summary, sand gold is an unrefined primary mineral, which is mainly different from it in its purity, physical properties and market value.