jewelry pallet wholesale How to identify authenticity in gold

jewelry pallet wholesale

5 thoughts on “jewelry pallet wholesale How to identify authenticity in gold”

  1. costume wedding jewelry wholesale Methods for identifying the authenticity of gold:

    1. Seeing color
    The different luster and color of gold can generally distinguish pure gold, K gold, real gold, fake gold. That is, gold is better yellow (yellow -red), and the color is more than 95%; the positive yellow color is about 80%; the blue and yellow color is about 70%; the yellow color is slightly gray and the color is about 50%. Therefore, there is a formula for "seven green eight yellow, yellow nine five red, yellow leucorrhea ash pairs of gold". For long -term gold jewelry, there will be a saying that "copper turns green, silver turns black, and gold will never change color".

    2, 掂 weight
    D gold weight is about double the same volume of silver, lead, and tin. True gold has a feeling of falling on the hand, while copper or others only have a sense of heavyness without falling.

    3, listening to the sound
    When the golden jewelry with high color color is hit or throw it hard, the dull sound of "daedy, punching" is made, and there is no rhyme. There is also no elasticity. K -gold has sound rhyme, sound, elasticity. The greater the elasticity, the more the rhyme, the more older, the worse the color. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.

    4, folding hardness
    The gold with high color, with large head needles or nails, can leave traces. More than 97%of the gold jewelry, after two or three times, wrinkles appeared, also called fish scales; about 95%of gold jewelry, it feels hard when bending, and the fish scales are not obvious; about 90%of the golden gold gold gold; The jewelry is very hard when the bending is bent, and there is no fish scale pattern; the gold jewelry containing more impurities, the bend twice or three times to break; if it is made for raw gold, the bend is broken. When using this method, the width and thickness of the jewelry should be considered. The thick and width should be hardened, and the thin and narrow ones are softer.

    5. Use the test gold stone to identify the color
    The use of the determined gold and the subject's first jewelry on the test gold stone. By comparing the color, the gold jewelry is determined. This method should be carried out under natural light and sunlight, and cannot be carried out under the direct sunlight and incandescent lamps.
    This in the past often used testing gold stones to determine the general content of gold. Testing gold stones are a mixed black mineral such as quartz and protein -containing quartz, and the gold is drawn on the test stone to see the general shape of the gold. Pure gold: shiny dark yellow, thick yellow; silver -containing gold: light transformed micro -band -inflammatory green; gold containing silver greater than 25%of gold: earth white; copper -containing gold: deeper color, red tone; silver copper tone; Gold: yellow; gold containing zinc, same, nickel: white gold.

    6. Use acid dots
    This to grind out the golden jewelry and comparison gold on the testing stone, and use a glass stick to test the nitric acid on the gold road. , Do not respond to acid, so the color is unchanged. If it is not gold or non -pure gold, the Golden Road disappears or changes. The law of changes is "three fast, three slows", that is, the low -quality disappearance is fast, and the high color disappears slowly; Depending on the disappearance of its golden road, the comparison of the comparison can determine the color of gold jewelry.

    7. Burning with fire
    This will be used to burn red (do not melt the jewelry) with fire (do not melt the jewelry). Pure gold; if the color becomes darker or darkened to varying degrees, it is not pure gold. Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry. After burning red, it is quenched into the water, and the color remains unchanged. It really does not change color when it comes to fire.

  2. wholesale raw stone jewelry Pay content for time limit to check for freenThere is nothing to say on the front of the answer. To say the QR code on the back, the genuine product is deeper than the color of the guy, but if there is no comparison, it is difficult to see something else. In the fluorescent agent, the fluorescent response with fluorescent lights with a fluorescent light is also a common problem for many fakes .3. The two s -tails are connected to large 4. Ointment: There is no difference in color and texture ~~~ It can really be called 1: 1 high imitation, so it can only be distinguished from the taste. Genuine is a strong grape flavor, and fake goods are similar to plastic flavors. 5. Lipstick lid side: The inside of the genuine lid is an oval fakenI hope my answer can help you, you

  3. upcycled louis vuitton jewelry wholesale Pay content for time limit to check for freenAnswer 1. Visual inspection 1. Check the official logo of gold. Generally, 999 or 990, or 10K, 18K, 22K, 24K. It is not considered lower than 10K, because the content of gold is too low. If you observe with a magnifying glass, you will see more carefully. 2. The ancient gold jewelry will not have obvious official purity logos. 3. Of course, the counterfeit gold jewelry will also have an official sign, so further inspections need to be performed. 4. Find obvious discoloration. Check the wear area of ​​the golden surface, which is usually on the edge of the golden products to check the color change there. If the golden color disappears and becomes another color, then this product is just a gold -plated. Second, bromine chemistry test 1. Put the golden products in the alcohol solution for a small meeting. 2. Soak the sperm solution of a filter paper. 3. At this time, the filter paper becomes gray -purple. 4. Drop 4 drops of bromo -A reagent to the filter paper. If the filter paper becomes white, then this gold product is real gold. All test time takes 20 minutes.

  4. wholesale polymer clay jewelry Pay content for time limit to check for freenAnswer our daily use of authenticity of gold and falseness. There are about the following four: 1. Viewing color gold is seven green eight yellow nine purple ten red. It means that the golden yellow gold content is 70%, the yellow gold contains 80%, the purple yellow gold contains 90%, and the red yellow contains almost 100%. 2. Seeing the proportion of gold is the largest proportion of the material, and its proportion is 19.37, and the same weight of brass; the volume of the red copper is much larger than the gold of the same weight. Those who have experience, look at the color, weigh the weight, and know one or two. 3. The hardness of the hardness redness is the smallest. You can bite the marks with your teeth. 4. The fire burning the real gold is not afraid of the fire, burned in the flame, and it is still glittering. The other metals will be oxidized and discolored as soon as it burns.

  5. wholesale on jewelry rings
    n00:00 / 03: 0170% shortcut keys to describe space: Play / suspend ESC: exit full screen ↑: increased by 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description

Leave a Comment