How to distinguish the true and false silver platinum jewelry when buying?
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How to distinguish the true and false silver platinum jewelry when buying?
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As long as you understand the following, everything is OK.
(1) Look at the color (also known as the face gear) test: the higher the purity, the white the silver, the fineness of the surface, the surface of the face is delicate and bright, and the color is moisturized. If the lead is contained, the tide flowers are blue and gray; if the copper is contained, the surface gear appears rough and rotten, and there is a sense of dryness. Although the oxidized silver has "black rust" on the surface, its color is dark and bright, tin, and white copper without luster, and their color is twilight.
(2) Type weight: Silver density is slightly larger than general metal. Generally speaking: "Aluminum light, silver heavy copper is not light and not heavy." Whether it makes a preliminary judgment for silver. If the jewelry has a large accumulation and light weight, it can be initially judged that the jewelry is other metals.
(3) Check hardness: silver hardness is lower than copper, and is larger than lead and tin. It can be judged as copper jewelry; if it is a leading tin texture, the traces are obvious and prominent; if there are traces of the physical objects, but not obvious, it can be initially determined as silver jewelry. Pure silver jewelry can be pulled by hand, and it can deform it.
(4) Listening sound rhyme: If the jewelry is high -colored silver, there is no sound, no elasticity, and the sound is "卟 卟 卟". The lower the color, the lower the sound, the higher the sound and the higher the rhyme; if it is copper, its sound is 100th, and the rhyme sounds are rushing and short. No elasticity.
(5) See the stubble mouth fixed color: intercept the silver jewelry and see the color of the stubble mouth. At about 98%; if the stubble mouth is thick and soft, slightly red, the color is about 95%; the stubble mouth is white and gray, and slightly reddish is about 90%; Gray, its color is about 80%; silver with a color of about 70%, its surface is white and dry, the stubble mouth is red and yellow, and the bending is hard; It has been below 60%.
(6) Forgery of silver: fake silver is generally made of red copper, brass, white copper, lead, tin, aluminum, etc. It is characterized by: red copper: purple red, purple red, purple red, purple red, purple red, purple red, purple red, purple red, purple red, purple red, purple red, purple red, purple red, purple red, purple -red, and red, Black red, green embroidery. Bronze: yellow appearance, green stubble beans, green embroidery. White copper: The appearance is gray -white, the stubble bricks are gray, and green embroidery. Leading: Gray blue, soft, can be drawn with nails. Tin: silver -white, soft, can be used to draw a trace with nails. Aluminum: white gray, soft and light constitution.
The silver jewelry has many types and complex color. Silver jewelry is generally mixed with other metals to varying degrees, so how to identify silver jewelry?
(1) Check the hardness
This Silver jewelry, the higher the quality, the softer, the white and the surface. Take the silver bracelet of about 60 grams as an example. If you open it with your hand, there is no elasticity, and its color is about 95%; if it is a bit elastic, the color is about 80%to 90%; %the following.
. If the jewelry is soft, the stubble mouth is thick and soft, with a slight redness, the color is about 95%; if the hands are bent hard, the stubble mouth is white and gray, or slightly reddish, the color is about 90%; Larger, the stubble mouth is light red, yellow and white, or gray, with a color of about 80%; if the bend is hard, the stubble mouth is red, yellow, yellow, etc., and the color is about 70%; Or yellow in the yellow, the color is 60%.
(3) Silver medicine wiper test
Man the silver jewelry to grind the silver road on the tasting stone (the same as the golden test gold), use silver medicine (silver medicine is silver powder and the silver powder and the silver powder and the silver powder and the silver powder and the silver powder and Mercury mixed into software shape) Apply on the silver road. The color of the silver medicine is high, and the color of the silver medicine is low.
(4) Color discrimination
The eye force to identify its color and true and false. High color, it looks white, delicate, shiny, and printed on the jewelry with manufacturers, shop numbers and other marks; low color, slightly yellow color, rough workmanship; fake silver jewelry is dark and unclean.
(5) Bending method
pinching the bend with your fingers, soft and flexible, easy to be bent and not easy to break; Or barely fold, and some can not even be folded with your fingers; Baoyin's bending or knocking with a hammer will crack; if you fake it, you can't stand the bend and easily break.
(6) Rossing method
The silver jewelry with high colors is heavy, and it is not high on the tablet. It is light, and the sound is tall on the table, and the sound of the sound is relatively crisp.
(7) The identification method of nitric acid
In the glass rod to drip the nitric acid at the silver jewelry mouth, which is high -colored in color, hidden green or slightly green; It is dark green and even black.
, when purchasing silver jewelry, the quality must be selected from the following four aspects:
(1) Look at welding. Some silver jewelry is welded, so it depends on whether the welding is clean, whether there are fake welding or opening welding.
(2) Look at the brightness. It is required to be pure and bright.
(3) Look at the plane. Be firm and Zhou Zheng.
(4) Look at the hook claws. It depends on whether the hook claws are burrs, whether they are tie hands, scrape their clothes, and are comfortable and convenient to wear.
This can be bought directly by the place where the silverware is produced