"Mr. Luo, I have another stone sculpture here. Please help me take a look at it." The man took advantage of the lively chat with Luo Tian and saw the right moment and took out another piece: "Please give me more advice."
"No, my knowledge about strange stones is limited. Let's study together." Luo Tian said: "I do know that the person who has the most experience in strange stones is Master Zhang Shanshui."
"Oh, do you know Master Zhang Shanshui?" The man was very excited: "I have known for a long time that he is a leader in this field, but it is a pity that I have never had the opportunity to meet him."
"He lives in Beijing now. If you want to see him, I'm afraid you have to go to Beijing. You can see him at some large-scale strange stone exhibitions." Luo Tian was happily chatting, so he might as well give him some advice.
"Okay, okay." The man said, "Look, is this a chrysanthemum stone?"
The chrysanthemum stone is named because of its appearance, which is hard and bluish-gray in color, and contains naturally formed white chrysanthemum-shaped crystals inside. It is very natural and beautiful, with various shapes and shapes, and is very similar to the chrysanthemum in nature. The chrysanthemum stone is composed of stamens and petals.
It consists of two parts. Because of this unique shape, it is named chrysanthemum stone. Nowadays, the most famous one is Liuyang's chrysanthemum stone.
"The chrysanthemum stone is indeed a good thing, because it does not contain radioactive elements and is very safe to store." Luo Tian said: "And when used as a carving, it can always produce extraordinary artistic effects. What's more, it matches a beautiful stone.
It’s related to the legend, which adds to its artistry.”
Legend has it that in ancient times, the heavenly god Huxi and the fairy declared their love for each other, and sprinkled chrysanthemums on the Liuyang River. The chrysanthemums that fell on the river were deposited on the river bottom, and over time turned into today's chrysanthemum stone. There is another saying, love each other heartily.
The lovers Shi Jian and Ju Hua knew each other and loved each other. They never left each other and refused to be separated until death. In the end, they both turned into the chrysanthemum stone they are today.
These are just some beautiful legends. According to archaeological discoveries, about 200 million years ago, the hometown of chrysanthemum stones was still a vast ocean. Later, due to changes in the earth, Liuyang, Hunan, entered a period of regression, and seawater accumulated in low-lying places on the surface.
Continuous evaporation, when the concentration of strontium sulfate salt in seawater increases to a certain level, crystals are formed, and gradually adhere to the core of flint. At the same time, they are deposited with the mud in the water and dispersed in the marl layer. After 200 million years,
The evolution of chrysanthemum stone finally formed today's chrysanthemum stone.
"Fake chrysanthemum stones are very common now." Luo Tian said: "However, the center of a real chrysanthemum stone usually has a crystal that is basically the same color as the petals. The petals are radially distributed in all directions from the central crystal. Therefore, if the stone is not thick,
The extension of the petals should also be visible from the back. Theoretically, if the stone is round, a complete chrysanthemum should be visible when polished from any aspect."
The man quickly raised the chrysanthemum stone in his hand to look at it. Fortunately, no matter from the left or right, he could see a complete chrysanthemum, and he immediately breathed a sigh of relief.
Luo Tian knew that in the strange stone world, because the complete chrysanthemum stones from the natural exposed environment have disappeared, some people take advantage of people's advocating for nature and use chemical or physical methods to change the real chrysanthemum stones, or change the color or shape of the flowers.
, and so on. Of course, chrysanthemum stones also come in a variety of colors like chrysanthemums, but generally speaking, stones that have been chemically changed are fragile and easily damaged. Some chemical or physical methods are used to strengthen loose stones, but generally
Only the surface is reinforced, thus using inferior materials to pass off as superior materials.
Taking advantage of people's psychology of admiring chrysanthemum stones but not understanding chrysanthemum stones, they use other stone flowers to deceive customers. Generally speaking, the shape of other stone flowers is not like chrysanthemums, but the petals are more like leaves. The artificial traces are strong and cannot be seen from the back.
The extension of the petals and even some stone flowers are all artificially carved.
Some stones or chrysanthemums themselves have defects, so they are painted with paint or other pigments to cover up the defects. Generally, black pigments or black paint, gray pigments or gray paint are used, and then varnish is added. Customers can choose according to the color
Judge naturally and naively.
Graft real chrysanthemum stones on other stones or on homogeneous stones. In this case, you can identify it by careful observation. Although there may be many kinds of base materials to form chrysanthemum stones, two or more base materials are different.
The adjacent lines will definitely not be neat and uniform, nor will there be any glue in the middle.
The flower center of the chrysanthemum stone is the soul of the chrysanthemum stone. If the chrysanthemum on the chrysanthemum stone has no flower center or the flower center is added separately, its artistry and value will be greatly reduced. Therefore, the chrysanthemum stone without heart or with added heart can only be regarded as second-class.
Taste it. Wuxin, you can tell at a glance that although some heartless chrysanthemums are still very beautiful, they are still defective. In addition, the material of the added heart is generally very different from the petals, and the color will also be significantly different.
The difference is that its shape is not very natural, and you can tell if you look closely.
Luo Tian explained these methods of fraud one by one. The man was very excited and was about to continue communicating with Luo Tian. The others could no longer hold back. One person even said directly: "Although it is said that it is first come, first served, but this
Sir, have you taken up too much time? It will be noon soon, can you make the process faster?"
The man felt a little ashamed and had to step aside and let others come over.
The man took out a jewelry box and opened it. The girl who was receiving the guests couldn't help but look over. It was a very shiny sapphire. The man said, "Please take a look. Some people say this is a sapphire."
Some people say no, I am really worried now. Is this true? I spent a lot of money."
Luo Tian picked it up and studied it carefully: "This is not sapphire. This is called tanzanite, also called gem-grade zoisite. The similarity between zoisite and sapphire is the color of indigo. The difference is: zoisite is
Indigo is bright and uniform, with no color bands or growth lines visible; pleochroism is obvious, with purple, green, and blue changes when viewed from different directions, and purple-red colors can be seen in a certain direction; low hardness, use a file
It can be carved."
The man's face sank. Looking at his disappointed look, Luo Tian said: "Don't be depressed. Although it is not sapphire, it has a lot of background. Zoisite is a calcium-aluminum silicate mineral. 20
In the late 1960s, blue to turquoise-colored transparent zoisite crystals were discovered in Tanzania. After people polished and processed them, they became a kind of gemstone. Although it was beautiful, it was not recognized by the world. In 1967, the United Kingdom
Taifenni Gem Company was established. The company noticed that blue zoisite in Tanzania was a gem resource that could be exploited, so it deliberately mined it and incorporated advanced gem processing technology. They named the blue gem they carved
Tanzanite, when recommended to the world gem market, immediately doubled in value, supply exceeded demand, the ugly duckling turned into a golden phoenix, and has now become a popular decorative gemstone in the world."
The man's face looked much better, and Luo Tian continued: "The largest market so far is still in North America. 80% of the tanzanite produced every year is sold to the United States, worth more than 300 million U.S. dollars, followed by Europe. It is said that Hong Kong also has
Sold in small quantities. This rare gemstone is blue, some are slightly purple, and some look blue, purple or golden from different angles. Tanzanite blue looks clear and warm. Some people compare light-colored tanzanite blue to
The eyes of the famous movie star Taylor. Because this gemstone is not as hard as ruby sapphire, some people think it is only a semi-precious stone. But because of this, it is cheaper and easier to process. It can be cut into various shapes and is larger in size.
, so the jewelry made is particularly eye-catching and deeply loved by American and European ladies. Since the 'Star of the Sea' worn by the movie star Winslet in "Titanic" was tanzanite blue, its price has been rising.
middle."
The four words "keep rising" made the man laugh out loud. Luo Tian said: "I just mentioned some characteristics of tanzanite, but only the top and grade A tanzanite blue have all the characteristics above. Grade B
Tanzanite blue is dark purple, grade b tanzanite blue is dark purple, showing less color changes, grade c tanzanite is lavender, only the color depth differs from different angles. However, various grades of tanzanite blue are crystal clear
, purity and refractive index are the same."
"Then this one is mine?" The man's throat was tightening.
"Now it looks to the naked eye to be A-level or above, but the specifics need to be confirmed through professional testing and data." Luo Tian said: "I'm afraid the machines we have here can't bear such a responsibility. It is recommended to find a specialized jewelry company.
Get tested.”
Seeing the man leaving happily after paying the fee, Luo Zai was also happy for him. Everyone who invests feels this way, right? Immediately afterwards, a lady sat in front of Luo Tian. She sighed with emotion at first, how much Luo Tian was
Big names are so rare to meet in person. Luo Tian listened patiently for a while before getting down to business.
What happened today? When Luo Tian saw what was in the box, he couldn't help but wonder to himself, is today a coincidence? This is a piece of blood amber. This woman looks very noble, and the thing she holds is also unusual.
: "Mr. Luo, please help me find out why the color of this pendant is getting lighter and lighter. When I bought it, it was said to be Burmese blood amber."
Luo Tian took the blood amber in his hand and weighed it: "Natural amber is very light and will sink when placed in water. There is a simplest way to test whether it is real amber.
"
Luo Tian asked the staff to get a 1:4 concentrated salt water, that is, one part salt, four parts water. As soon as the water was brought over, Luo Tian threw the piece of blood amber into the water. The people next to him screamed, because
As soon as the blood amber entered the water, it slowly floated up. The lady was a little confused: "Why is this happening?"
"It means it is real." Luo Tian explained: "Real amber will float slowly in salt water with a ratio of four to one, but fake ones will not float. Luo Tian took the amber out of the water:
"In fact, we can also test it with our hands, because amber is a neutral gemstone and will not be too cold or too hot. If it is imitated from glass, it will feel colder, and there is still heat in real amber.
The bubbles are round, these are relatively simple identification methods, and you can identify them immediately."