Opal is also one of the most common gemstones. It is the rarest and rare one of the gold emeralds. Because the opal shows the same light phenomenon as the cat's eyes, it is flexible and bright, and can change with the intensity of light. Named after. The opal is only produced in Sri Lanka worldwide, and the price is quite expensive. It is difficult to see domestic shopping malls above 10 carats. Opal is often referred to as "noble gems." Together with the stone, it belongs to one of the world's five precious high-end gemstones. Strictly speaking, "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 Eye", if it is a gold emerald, it is called "Golden Green Cat Eye." 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 mainly "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 eyes cannot be called. When you want to start the opal, you need to pay attention to identification. The method for identifying the true and false of the opal is as follows: 1. The main recognition feature of opal is the clear brown-eyed cat's eye. The filamentous inclusions of the opal are rutile, and some are empty tubes. Because these tubular bodies are slender and dense, the cat's eye effect is particularly noticeable, and is also very clear under weaker sources. This is unmatched by other gems. 2. Artificial opal is made of glass fiber, red, blue and brown, and the brown-yellow variety is somewhat like natural opal. The difference between the two is that the artificial opal has 2-3 bright bands at the top of the curved shape, and only one natural opal; the sides of the artificial opal are observed with a magnifying glass, and the hexagonal honeycomb structure can be seen; Stone has a lower hardness than natural opal. 3. Use a single light source to illuminate from the side of the opal, the color of the sides of the opal is different. When you look at the yellow opal from the left side, the left side is honey yellow, the right side is milky white, and when it is illuminated from the right side, its color is just the opposite. pvc leather for bag, pu leather for bag, artifical leather for bag, synthetic leather for bag, bag leather, Faux Leather Suitcase,Leather For Wallet,Faux Leather Bag,Artificial Leather For Bag Vigor Plus Co., Ltd , https://www.vigorplusx.com
