Gemstone: Opal can not only change with the intensity of light, but also like the cat's eyes, hence the name. The gemological community refers to the gold emerald with the cat's eye effect as the opal. The opal stone is generally referred to as the golden green cat's eye gem. Opal is a gold emerald mineral. Opal has a variety of colors, such as honey yellow, brown yellow, wine yellow, brown yellow, yellow green, yellow brown, gray green, etc., among which honey yellow is the most expensive. Gems that produce cat's eye effect in nature include tourmaline, beryl, apatite, quartz, and kyanite, but they are not as precious as gold-green cat eyes.
Strictly speaking, "cat's eye" is not the name of a gem, but an optical phenomenon on certain gemstones. That is, when the hemispherical gemstone is irradiated 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". What should I pay attention to when buying opal?
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. Opal is mainly produced in gas-forming hydrothermal deposits and pegmatite veins. The world's most famous opal origin is in the southwestern part of Sri Lanka, such as Tranabula and Gower, and countries such as Brazil and Russia have also found opals, but they are very rare.
The best color of the opal is the strong yellowish green, brownish yellow and honey yellow, followed by green, and slightly darker brown again. Very white yellow and very white green, the value is lower. The worst is motley and gray.
The opal eyeliner should be narrower, with clear boundaries and visible light, and be located in the center of the gem. Regarding the color of the eyeliner, some people prefer the silver color, while others prefer golden yellow, while the green and blue-white lines are more cold. The body color is opaque gray, often with blue or blue-gray eyeliner. However, no matter what color, it is important that the eyeliner must be in contrast to the background and be clean and neat. Eyes should be large, the bigger the better, and the combination should be sharp.
The processing technology is also an important factor in evaluating opal. In order to make full use of the original stone. The purpose of staying thick is to increase weight and sell more. The result is counterproductive, and the unevenness seriously affects the beauty of the cat's eye, and no one opens the high price. The correct way is to keep the proper thickness below the waistline of the gemstone and grind it into a small curved surface. Keeping it at a low angle will help the gemstone be firmly placed on the support.
What should I pay attention to when buying opal? When purchasing, the opal should be distinguished from other gemstone cat eyes and artificial cat eyes according to the identification features, and the real opal can be purchased.
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. Let's talk about the role and effect of opal:
1, opal is often considered a symbol of good luck, people believe that it will protect the owner's health and longevity, free from poverty, and beneficial to the health of the reproductive system and related organs.
2. Promote cell metabolism, regenerative capacity and blood circulation, activate cells, accelerate the metabolism of the human body, excrete harmful substances in the cells, have the effect of rejuvenating beauty, balance endocrine disorders, lower cholesterol, and improve symptoms of diabetes. It also helps people enhance their memory and helps people relieve fatigue. Opal can increase the oxygen carrying capacity of red blood cells and reduce blood viscosity.
3, can improve the skin's problems and prevent the wound from getting worse. Increase the inspiration of people's thinking, avoid evil and become a protective stone that is not invaded by external forces.
4, opal stone also symbolizes courage and strength, often used as amulet in the East to avoid evil, can also make people brave to say goodbye to past love.
5, opal promotes inflammation subsidence, eliminates swelling and pain, improves gastritis, enteritis, nephritis, arthritis, shoulder and cervical spondylitis, lumbar muscle strain symptoms, and greatly helps middle-aged and elderly people.
6, opal can adjust blood pressure in both directions, people with high blood pressure can lower blood pressure.
7. Opal can enhance and improve the body's immune function, improve the body's resistance to disease, and have curative effects on various senile diseases such as heart disease and coronary heart disease.
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