What is the identification method of chalcedony? Blue chalcedony can always attract people's attention easily. It is not only beautiful, but also has a great feng shui effect. Many people will choose to buy blue chalcedony, but it will not be true or false, and it is easy to buy fakes. Let's take a look at the identification method of chalcedony.
What is the identification method of chalcedony? 1 1. Is chalcedony crystal?
Sapphire is a member of the crystal family. Like crystal, its main component is silicon dioxide, aphanitic aggregate, dense block, or spherical, radial or fine fibrous aggregate. The color is mainly blue, with yellow-green inside, but it is rare. Grease luster to glass luster, conchoidal fracture. Mohs hardness is between 6 and 5-7, and sometimes there is halo effect or cat's eye effect, which is very rare and precious.
2. How to identify the authenticity of chalcedony?
Because blue chalcedony is a member of the crystal family, its authenticity identification can learn from how to distinguish the authenticity of rock crystals.
(1, lighting method
Generally, when you look at the blue chalcedony facing the light, you can see that blue or yellow-green is accompanied by its interior, not completely blue; But fake chalcedony will not have this phenomenon.
(2) Look at the fracture (for the original stone)
The true chalcedony fracture is mapped with a shell-like mouth, which is irregular and the false chalcedony fracture is smooth and flat.
Crystal 100 Crystal Sapphire Pendant
(3) Special optical effect
Under special illumination, halo effect and cat's eye effect are more flexible and vivid, while pseudochalcedony does not.
(4) Fluorescence effect
Under the irradiation of ultraviolet light (ultraviolet lamp for banknote inspection is enough), sometimes the fluorescence effect is weak and strong, while the false chalcedony has no fluorescence effect and the color is dim;
(5) color
In fact, the color of chalcedony is uneven, and sometimes there are bands, which may be caused by the different trace impurities contained in chalcedony precipitation, but the color of fake chalcedony is relatively uniform, and there is no band distribution, mainly because the trace impurities in processed chalcedony are difficult to control;
(6, touch
Touching chalcedony with your hands will feel refreshing and cold, but fake chalcedony will not feel this way.
What are the methods to identify chalcedony?
1. Observe the luster of chalcedony. If chalcedony looks more aura and has a warm luster, it can be preliminarily judged to be natural chalcedony. If it is fake chalcedony, it not only looks dull and lifeless, but also has bubbles.
2. Scrape chalcedony with a knife. If there are no traces or scratches on the surface of chalcedony, then this chalcedony is natural chalcedony. If there are scratches, it must be fake chalcedony.
We can judge the authenticity of chalcedony by weighing the specific gravity. If it is heavier, it is natural chalcedony, because fake chalcedony is lighter.
4, listening to the sound can also identify the true and false chalcedony. Tap chalcedony with a hard object. If it is natural chalcedony, it sounds very crisp and pleasant. If it is fake chalcedony, it sounds dull and dry.
You can also identify the authenticity of chalcedony by touching it. Because chalcedony is very delicate, we feel smooth to the touch. At the same time, chalcedony is cold as crystal, so it feels like natural chalcedony, and if it doesn't feel cold, it is fake chalcedony.
6. lick chalcedony with the tip of your tongue. If it feels astringent, it is natural chalcedony. If there is no feeling, it is fake chalcedony.
What is the identification method of chalcedony? 2 1. Look at the color.
Observing the color of chalcedony, we can see that natural chalcedony is mainly blue, occasionally with both yellow and green. The overall color distribution is uniform, and some colors are banded. You can illuminate the blue chalcedony with a flashlight. There is no yellow-green part in pseudochalcedony, and the color distribution is uneven and the color is not banded.
2. Fluorescent irradiation
Natural chalcedony will fluoresce under ultraviolet irradiation, showing a yellowish green light from weak to strong. If it is fake chalcedony, it has no fluorescence effect, and the color of fake chalcedony is dark under ultraviolet light.
3. Observe the fracture surface
Natural chalcedony has a compact texture, oily luster, shell-shaped fracture and uneven fracture. Pseudochalcedony structure is not tight enough, the luster is dim, and the lines at the fracture are smooth and regular.
Chalcedony refers not to the essence of jade, but to silicon dioxide, a quasicrystal formed in time. So what is chalcedony? Sapphire, also called amethyst, is a member of chalcedony family, so it belongs to cryptocrystalline seasonal gem. Blue chalcedony is blue because it contains copper. Blue chalcedony includes blue-green, bright blue, light blue to dark blue chalcedony.
Blue chalcedony is a precious variety of chalcedony, and it is also a high-priced gem produced in Taiwan Province Province. With the continuous exploitation of chalcedony in Taiwan Province, the demand of chalcedony in Taiwan Province is increasing, the demand of chalcedony in Taiwan Province is in short supply, and the price of chalcedony in Taiwan Province is also rising.
For chalcedony, the more uniform the color distribution, the less variegated color, the purer the color and the higher the value; The fewer internal cracks and inclusions, the purer and more transparent chalcedony, and the higher the texture and value of chalcedony.
Function and efficacy of chalcedony;
1, ink jade is the moon, which means it is closely related to water. Therefore, it can prevent drowning and accidents and prevent the invasion of spells.
2. The ancient Romans believed that wearing water foam jade could drive away evil spirits, eliminate disasters and prevent some negative energy injuries, and it was also a very good protective amulet for people who often traveled abroad.
3. According to foreign literature, ink jade can reduce the problems at the binocular level, and it is also helpful to the gallbladder, liver, bladder, bones and blood respiratory system.
4. I heard that it can also relieve pain and promote pregnant women to eat. If it is under direct ultraviolet or blue light for about 30 minutes, the kinetic energy of water foam jade can be improved a lot.
5, improve the ability of expression and communication and coordination-dark blue foam jade with throat wheel can improve the ability of self-expression and communication and coordination.
6. It is beneficial to remove all kinds of negative energy, such as preventing villains and preventing right and wrong.
7, drowning prevention-water foam jade means the moon, which is closely related to water, so it can prevent drowning and accidents and prevent the infringement of spells.
8. The quick kinetic energy of ink and jade, Shura develops the right brain-judgment and subconscious, so it can help others develop their design potential. Such as the sixth sense, judgment and the third eye, so as to develop and design the greatest intelligence. Best for carrying, holding and meditation training.
Blue chalcedony is a calm and immortal force, which has strong vibration, can calm people's mood, has the practical effect of calming the nerves and helping sleep, and can treat insomnia and nightmares and improve memory. It means noble and loyal love, and it is evidence of mutual love and mutual service commitment.