(1) Look at the color (also known as the face file) test: the higher the purity, the brighter the silver, the smoother and evener the face, and the touch. If it contains lead, the surface file will have a turquoise color with a tide; if it contains copper, the surface will appear rough and rotten, and it will have a dry feeling. Although the oxidized silver has a "black rust" on the surface, its color is black and bright, and the lead, tin and white copper are not glossy, and the color is bluish. (2) Weight: Silver density is slightly larger than that of common metals. Generally speaking, “aluminum is light and silver is not light or heavy.†Therefore, the weight can be judged whether it is silver or not. If the jewelry is large in size and light in weight, it can be preliminarily judged that the jewelry is other metal. (3) Check the hardness: the hardness of silver is lower than that of copper, and it is larger than that of lead and tin. Therefore, the surface of the solid object is slightly pressed with a pin to test. If the needle is slippery and the surface is difficult to leave traces, it can be judged as copper jewelry; If it is a lead-tin texture, the traces are obvious and prominent; if the object remains traced and not too obvious, it can be initially judged as a silver jewelry. Pure silver jewelry can be deformed by hand. (4) Listening to the rhyme: If the jewelry is high-color silver, the sound will be no rhyme, no elasticity, and the sound will be “åŸå“’åŸå“’â€. The lower the color, the lower the sound, the higher the sound is, the higher the sound is. If it is copper, the sound is higher and the sound is faster and shorter. If it is lead or tin, the sound is dull and short. No stretch. (5) Look at the color of the mouth: cut off the silver jewelry, look at the color of the mouth, if the mouth is white and cotton, the surface of the jewelry is smooth and delicate, and the surface color after oxidation is bright, it can be judged that its color is about 98%; Soft, slightly red, color is about 95%; mouth white and gray, slightly reddish color is about 90%; hand bending is hard, mouth is reddish or gray, its color is about 80% The color of silver is about 70%, the surface is white and dry, the mouth is reddish and yellow, and the bending is hard; if the lipstick is black, the yellow is black, and its color is below 60%. (6) Characteristics of counterfeit silver: Counterfeit silver is generally made of red copper, brass, white copper, lead, tin, aluminum, etc. It is characterized by: red copper: purple-red appearance, black-red mouth, green embroidery. Brass: yellow appearance, green beans, green embroidery. White copper: The exterior is grayish white, the bricks are gray, and the green is embroidered. Lead: gray-blue, soft, can be traced with nails. Tin: Silver white, soft, with a nail to draw traces. Aluminum: white and gray, soft and light. Piece Dye Shirt,Piece Tie Dye Shirt,Two Piece Tye Tie Dye Tshirt,Tie Dye Two Piece Shirts Shaoxing Blue Surge Fashion Co.,Ltd. , https://www.blue-surge.com
