www.winbowgems.com tell you The basic nature of the platinum how

Universal description platinum product knowledge - wholesale gemstone1. The basic properties of platinum what? Platinum (platinum) symbol Pt, color is bright white with a gray, metallic luster, hardness 4-4.5, melting point of about 1768 degrees Celsius. Platinum's chemical stability, wear resistance, high temperature, corrosion of platinum in a variety of the most rare precious metals, precious and durable.
Platinum is more rare than gold, gold of the world's annual output of about 1,500 tons, while production of platinum out of only about 160 tons. Platinum There are very few places to mining, mainly in South Africa and Russia. gemstone supplier in chinaPlatinum's density is very high, so the weight of a corresponding higher. A platinum ring size than the 14K gold ring with heavy 60%. General purity platinum jewelry is 900 ‰ or 950 ‰. As the high purity of platinum, it will not fade or change color. Pure white platinum diamond reflected light well, while platinum of high purity and will not cause skin allergies. 2. Platinum jewelry how to care? Platinum difficult chemical reaction, corrosion resistance, but the hardness of all precious metals are relatively low, so easy to scratch and platinum is no exception. Platinum jewelry should be worn to avoid contact with high hardness materials, should also avoid contact with chemicals such as bleach, detergent, etc., should also avoid the handling of domestic and wear platinum jewelry. 3. Platinum jewelry how to clean? Can be cleaned with diluted liquid soap platinum jewelry, and then dry with soft cloth water, can also be non-abrasive cloth and remove the surface finger stains, such as silver cloth or cleaning wipe cloth and other glasses. Xin Wang's heart and desire gemstone wholesaler in china