After the parallel growth of the tubular inclusions in the tourmaline reaches a certain density, the point light source is used to illuminate the tourmaline, and a bright line is generated in the direction perpendicular to the parallel inclusions, that is, the cat's eye effect, which is what people often say. The cat's eye tourmaline, the jewelry made from the cat's eye tourmaline material has a cat's eye effect and is very popular. So let us teach you how to identify the quality and value of cat's eye tourmaline?
First, look at the cat's eye flash; when a cat's eye tourmaline is placed in a concentrated flashlight or direct sunlight, the lighter and smoother the flash, the brighter the better, the higher the value.
Second, observe the color of the tourmaline; usually, the color of the cat's eye tourmaline is not good enough. For example, in the golden-green cat's eye tourmaline, the color is grayish, greenish, yellowish and lighter in quality, and the best is transparent honey color.
Third, look at the purity; the less ice cracks and inclusions in the cat's eye tourmaline, the higher the quality value.
The quality and value of cat's eye tourmaline is mainly influenced by its purity, color, position of the cat's eyeliner and its color. The cat's eye tourmaline is of high quality, the crystal is transparent and bright, the color is bright and bright and stands out from the background, and the eyeliner is located in the center of the arc of the tourmaline. In addition, since the tourmaline and the crystal contain many ice cracks and inclusions, the crystal-clear cat-eye tourmaline is very rare and extremely valuable.
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