The formation of agate:
It is generally believed that primary agate is formed by residual hydrothermal solution of magma. This hydrothermal solution is filled in the gaps of volcanic rocks, such as basalt and rhyolite. Because of the different shapes of the gaps, agate balls or agate veins are formed. After the action of natural forces, the original agate fell off, and then was hit by mountain torrents, carried by running water and ground into pebbles. This is what we see in the gravel layer. Rain flower stones are famous for their peculiar patterns and colorful natural beauty. Its ring pattern is surrounded by silica gel around cracks and holes in volcanic rocks, starting from the inner wall and deposited layer by layer from the outside to the inside. During its growth, periodic diffusion of colored ions and compounds often occurs.
The main chemical composition of primary agate is silicon dioxide, followed by a small amount of iron oxide and a small amount of elements and compounds such as manganese, copper, aluminum and magnesium. They have different pigments, such as latosolic red iron, blue copper, purple manganese, yellow colloidal chalcedony, emerald green minerals and so on. Due to the different types and contents of these pigment ions dissolved in silica hydrothermal solution, they present a variety of colors with different shades, making the rain flower stone beautiful.
Maintenance of agate:
First of all, agate should avoid colliding with hard objects or accidentally falling. Because the hardness of agate is not very great, care should be taken, especially bracelets and other ornaments that may come into contact with hard objects more. Of course it's not easy to break. The main thing is to pay more attention not to collide with anything harder than it or accidentally fall down.
Secondly, when not in use, it should be put in a jewelry box, and a soft cloth should be laid in the jewelry box, so as to better keep the agate moist.
Third, try to avoid contact with perfume, chemical liquid, soap or human sweat to prevent erosion and affect the brilliance of agate. Some people don't pay attention to it. They don't take off agate ornaments when they are wearing perfume or washing clothes, and it is easy to change color. Others wear it in summer, and sweating a lot will make it change color. Then someone will ask, don't wear it all. In fact, regular cleaning is very necessary. Remember to take off agate ornaments when touching perfume or washing clothes, and remember to clean them when sweating in summer.
Fourth, we should pay attention to avoid heat sources, such as sunlight and stoves. Many female friends need to go to the kitchen often, so it is inevitable that they will come into contact with the cooker. Some people often work outdoors, which may also lead to agate discoloration. Because agate will expand when heated, the increase of molecular volume will affect the quality of jade, and continuous contact with high temperature will also cause agate to burst.
Finally, agate should keep proper humidity, especially in water bile agate, where there is natural water when it is formed. If the surrounding environment is very dry at present, it will cause the evaporation of natural water, thus losing artistic and economic value.
Classification of agate:
sardonyx/red agate
Red agate, ancient red jade. Among the red agates, there are East Red Agate and West Red Agate. The former refers to the red agate formed by natural iron-containing agate after heating treatment, also known as? Burning red agate? , including bright red and orange. An East Red Agate, named after it came from Japan in its early years. The latter refers to natural red agate, including dark red agate and bright red agate. Agate unearthed in ancient China belongs to West Red Agate, which comes from the West, hence the name.
Blue agate
Refers to blue or blue-and-white agate. This is a kind of agate with very beautiful color, and the large size is a good material for jade carving. People of high quality are dark blue. The second color is light. Blue and white flowers are also beautiful. When they have pinstripe structure, they belong to the variety of silk-wrapped agate. At present, most of the blue agate products produced in China market are artificially dyed, with uniform color and easy to distinguish from natural ones.
Purple agate
Purple agate. Most of them are single purple, and the quality is as bright as amethyst. The second color is light or not bright enough. Bored? . Purple agate is rare in nature, and it is also dyed.
Green agate
Green agate is not found in nature. At present, almost all the green agates in the Chinese jewelry market are artificially colored. Its color is thick green, and some colors are like jade, but experienced people can easily distinguish it from jade. Green agate? Thin? , the texture is not green or brittle; Jade color? Thick? Emerald texture, tough.
black agate
Black agate. Black agate is rare in nature. At present, the black agate in China's jewelry market is artificially colored, and the color is thick black, which is easy to mix with other jet stones. Its hardness is greater than obsidian.
White agate
White tone or five-color agate. Among them, a kind of so-called white agate produced in northeast Liaoning actually belongs to white chalcedony, which is mostly used to make beads, and then artificially colored as blue, green and black. This kind of white agate is also a large piece of raw material for jade, and it is dyed well in the local area for use. However, nature also produces some white agates, which are generally unpopular because of their incorrect colors, especially those that are gray-white, but they can also be used to make some cheap and low-grade tourism products or souvenirs.
Other colors of agate Other colors of agate can be named according to different colors.
Aquatic agate
Aquatic agate is a natural agate. Due to the special formation environment, the aquatic agate formed contains grass-like patterns.
In recent years, with the popularity of agate market, the price of aquatic agate in agate has soared, and the room for growth has been several times or even dozens of times. Feel free to buy aquatic agate, you must know something about it. In order to avoid buying defective products at high prices. Not only a waste of money, but also harmful to the skin (body)!
In the composition of aquatic agate, we must first make sure that it is composed of a whole agate original stone, and then it is inside the aquatic agate. Tolerance? (silky), that is, in agate? Water plants? It has a variety of shapes like a bonsai in agate, and as a unique inclusion of aquatic agate, its filiform branches are many and thin, and most of them are like chaotic aquatic plants, which is also the origin of aquatic agate.