According to the data query, topaz is also a kind of gemstone, and the transparent and beautiful topaz can also be among the nobles. And the biggest value of topaz is the beauty of color, the more colorful it is, the higher its value. In the eyes of Europeans, Topaz can bring beauty and wisdom to those wearing topaz; in the West, it is worn as a talisman, which can eliminate sorrow and enhance confidence. Therefore, all kinds of topaz jewelry are very popular among consumers. Then, how can we know that it is the real topaz in the purchase process, and from which aspects should we identify the topaz? Follow the small series of China Jewelry Merchants Network to find out how to identify the topaz!
What is topaz and its characteristics?
Topaz, also known as citrine, is a salt mineral of fluorosilicic acid, which is formed during the crystallization of igneous rocks. Generally it is columnar or irregular granular, with very good glass luster, while some are colorless and transparent. If the topaz is exposed to sunlight for a long time, it will fade. Topaz belongs to the general gem, but in daily life, topaz is often easy to mix with yellow crystal. How do we distinguish it?
Identification and difference of topaz:
In fact, topaz and crystal are the easiest to distinguish in raw materials. Since the top surface of the topaz has vertical stripes, the top of the crystal is horizontal stripes. For jewelry without inlays, the feel is different. Generally, topaz is heavier than crystal. If you use your hand to lick, the topaz gives the feeling of falling, while the crystal is lighter. In addition, the luster of the topaz gemstone is very soft, while the crystal is cold and sharp.
Topaz and tourmaline: Tourmaline has a very strong dichroism, and its birefringence is also very strong, often seeing double shadows; while topaz is not only pink, but the dichroism of other colors of topaz is very weak.
Blue topaz and aquamarine: In general, these two gems are more indistinguishable, but there are still identified reference features: blue aquamarine tends to have some yellow-green tones and a slight dichroism. It is only a lighter weight. If accurate identification is required, a device refractometer is also required for the determination.
The above is about the content of topaz and the identification method of different easy-to-mix gems. In addition, when we purchase topaz, we should pay attention to the color of topaz, generally bright and pure wine yellow or orange topaz are the best. And the topaz gemstones generally have cracks, such as smashing and chipping. In addition, the color of topaz should be consulted whether it is natural or radiation-colored.
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