Is tourmaline fake? This question is believed to have a positive answer for more than 99% of people, that is: of course there are fakes. So friends who care about this problem, as long as they understand the objects on the market that are used to imitate the tourmaline, then the following small series will start to introduce to friends!
Common in the market, which are often confused with tourmalines or counterfeit tourmalines are: crystal, fluorite, and glass. Among them, glass is the most common counterfeit tourmaline. Let us continue to understand.
Confusing and distinguishing jewelry from tourmaline
Crystal and tourmaline: mainly observe their color, generally purple is more common in the crystal, the purple of the tourmaline is generally shallow, pink purple and light purple. In contrast, crystals are not red and green like the tourmaline (except for the hair crystal), so you can use the difference in color between the two to roughly identify the true and false.
Fluorite and Tourmaline: From the comparison of hardness, the hardness of tourmaline is 7.5 degrees Mohs, and the hardness of fluorite is only about 4 degrees Mohs. Both can be compared by hardness. Secondly, fluorite often uses multi-color materials when posing as tourmaline, and there is no purple in the tourmaline. Just as the multi-color of fluorite often appears purple, it is also an effective means to distinguish between fluorite and tourmaline.
Glass and Tourmaline: From the perspective of internal inclusions, there are often small round bubbles in the glass, which is not the case with tourmaline inclusions. There is also a way to pretend to be a tourmaline in glass. That is to use a burst of glass to pretend to be a relatively coarse tourmaline. This type of glass is usually dyed after bursting. Therefore, the color dyes are concentrated in the cracks, and the light transmission is easy to distinguish.
1, color: rose red, purple, green and pure blue and pretty color watermelon is the best, pink and yellow second, colorless, black most. In the same color, according to the degree of color intensity, it is divided into 4, etc., which are rich, medium, light, and dark.
2, Clarity: requires less internal sputum, crystal clear tourmaline price is the highest, tourmaline containing many cracks and gas-liquid inclusions are usually used as jade carving materials. Internationally, the purity of tourmaline is divided into 6 levels, which are small noise (VVF), slightly noisy (VF), obvious noise (VL) slightly cotton (VS) and obvious cotton (S) turbid (C).
3. Transparency: Transparency refers to the transparency of tourmaline. The more transparent the glass is, the higher the value is. The international classification is 4; the readable word (SF), the identifiable (SS), and the transparent ( SL), opaque (NL).
4, work / cut: work, the inspection of the tourmaline carvings, beads chain, the appearance of polishing technology. Compared with the tourmaline ring, the main inspection is the cutting of the surface. The cut should be regular, the ratio is symmetrical, and the polishing is good.
5. Rarity: Rareness refers to the composite index that comprehensively considers the color, weight, transparency and volume of the tourmaline. The indicator directly affects the market value of a tourmaline.
Well, the above is the jewels that Xiaobian confuses often with friends, so friends must understand.
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