Where does the enchanting name of the cat's eye tourmaline come from?
"Cat's eye" is an optical phenomenon on some gems. Due to the parallel tubular inclusions inside the gems, the inclusions reach a certain density and will be illuminated by the point source in the direction perpendicular to the parallel inclusions. There is a bright line, often referred to as the cat's eye effect. In the tourmaline family, this imagination is generally dominated by red tourmalines and green tourmalines.
Let's take a look at what is the cat's eye tourmaline.
Quality of cat's eye tourmaline
First look at the "cat's eye flash", the brighter the flash, the finer and more straight, the best, at least in direct sunlight or concentrated flashlight, the quality is too low.
Followed by the color of the gemstone, generally speaking; the color of the cat's eye tourmaline is not bright. Take the golden-green cat's eye tourmaline as an example, it is better to use honey color and translucency, and the color is yellowish, greenish, lighter, and grayish. In addition, the presence or absence of bismuth and particle size are also important. Special varieties of cat's eye flash may appear in color, such as red bright lines, which is very precious.
The quality of the cat's eye
The quality of the cat's eye tourmaline is mainly considered in terms of color, the position of the cat's eyeliner, the color and purity of the tourmaline. High-quality cat-eye tourmaline, the cat's eyeliner is thin and narrow, and the boundary is clearly visible; the cat's eyeliner is located in the center of the arc of the tourmaline, and the color is in sharp contrast with the background; the higher the transparency of the cat's eye tourmaline, the brighter the color, the higher its value. Because the tourmaline is born with many ice cracks, like the crystal, the inside also contains inclusions, which is a place of regret, so the pure and clear tourmaline is very rare, belonging to the top grade in the tourmaline, the price will be higher.
To be precise, "cat's eye" is not the name of a gem, but an optical phenomenon on certain gemstones. That is, when a gemstone that has been ground into a hemispherical shape is illuminated with strong light, a thin and bright reflection will appear on the surface, which is called "cat's eye flash" or "cat's eye light", and then it is named according to what the gem is. If the gem is quartz, it is called "Quartz cat's eye", if it is a gold emerald, it is called "Golden Green Cat's Eye Tourmaline". There may be many types of gemstones that may have a cat's eye flash. According to statistics, there may be as many as 30 kinds. In addition to the quartz cat's eye and the golden-green cat's eye, there are also "Gemstone Cat's Eye" and "Aquamarine Cat's Eye". Because the golden green cat's eye is the most famous and most precious, it is also referred to as "cat's eye" in the habit. Other cat's eye tourmalines cannot be called.
Cat's eye tourmaline is to be reached
Collection level, the following conditions are required:
1. The cat's eye flashes to be clear. If the cat's eye does not shine under direct sunlight, then there is no collection value.
2. The position of the cat's eyeliner is best in the center of the arc of the tourmaline. As long as the cat's eyeliner is clearly distinguishable, the narrower and narrower the cat's eyeliner is, the better.
3. For the color and purity of the cat's eye tourmaline gemstone, the brighter the color of the tourmaline cat's eye, the higher the purity of the gemstone, the more collectible the cat's eye tourmaline.
Jiaxing Shenran Trading Co.,Ltd , https://www.changepose.com