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What is crystal material
Published:2019-04-29 17:51:19    Text Size:【BIG】【MEDIUM】【SMALL

Introduction of crystal:


Artificially grown alpha quartz crystals. Alpha quartz is soluble in alkaline solution under high pressure. The crystal structure is relatively complete, containing twins, holes, and inclusions. The α quartz crystal can be grown from sodium hydrogen hydride or sodium carbonate solution by reducing its solubility with decreasing temperature. The synthesis pressure was 16.5 MPa and the temperature was 400 °C. The growth rate at the (001) basal plane was 1.27 μm/day. Mainly used in the electronics industry, ultrasonic generators, optical instruments and analytical instruments. Artificial crystal is high-lead glass, or lead-crystal glass, which is a synthetic crystal with brightness and transparency similar to natural crystal by adding 24% lead oxide to ordinary glass (component is silica).
The artificial crystal is made of raw material quartz sand, which is refined through a series of processes, and then refined by fine cutting technology and flawless grinding. The artificial crystal is pure and transparent, making up for the deficiency of natural crystal.
The addition of artificial crystals into metal elements such as lead enhances the refraction of light and reveals the nobleness of the crystal. Due to the complicated process of artificial crystals, the craftsmanship is superb, and some are even more expensive than natural crystals.


Chinese name artificial crystal application range electronics industry, ultrasonic generator, etc. Also known as high lead glass production method Add 24% lead oxide in ordinary glass


1. Molecular formula:
2. Alpha quartz crystal grown by artificial method. Alpha quartz is soluble in alkaline solution under high pressure. The crystal structure is relatively complete, containing twins,
Silica
Silica
Less holes and inclusions. The α quartz crystal can be grown from sodium hydrogen hydride or sodium carbonate solution by reducing its solubility with decreasing temperature. The synthesis pressure was 16.5 MPa and the temperature was 400 °C. The growth rate at the (001) basal plane was 1.27 μm/day. Mainly used in the electronics industry, ultrasonic generators, optical instruments and analytical instruments. [2] 
3, artificial crystal is high-lead glass, or lead-crystal glass, that is, adding 24% lead oxide to ordinary glass (component of silica), you will get artificial crystal with brightness and transparency similar to natural crystal.
Crystal standard editor
There is a strict concept of glass in the world. Glass: ordinary glass products. Crystal: Leaded glass, or crystal, has a lead oxide content of 24%. Therefore, it is guaranteed by 24% lead oxide high quality lead glass.
Quality requirements and technical standards
The technical standards for identifying crystals are as follows:
Color: colorless
Gloss: glass luster
Cleavage: None
Fracture: shell shape
Mohs hardness: 7
Density: 2.66 (+0.03, -0.027) g/cm
Photographic characteristics: heterogeneous, monoaxial, orthorhombic, with bull's eye interferogram
Refractive index: 1.544-1.553
Birefringence: 0.009
UV fluorescence: none
Magnification inspection: liquid and gas, liquid two-phase inclusion, gas, liquid, solid three-phase acicular rutile, tourmaline and other solid mineral inclusions, negative crystal
Special optical effects: cat eye effect [3]
Crystal feature editing
The international standard of lead oxide content is 24%. At this time, the chemical properties of artificial crystals are the best. Compared with ordinary glass, the ratio is mainly heavy and heavy. The refractive index is large and can transmit the multicolored colors of the spectrum. The hardness is high. Wear resistant.
Pictured is high quality natural crystal jewelry
Pictured is high quality natural crystal jewelry
The biggest feature of artificial crystals is the presence of a daughter crystal nucleus. If the artificial crystal has a crystal nucleus, it is better to judge, because the nucleus is generally a colorless long plate column, and the crystal grain boundary is clear with the surrounding. But in 2003, some colorless artificial crystals on the market, because the nucleus and synthetic crystals are colorless, in addition to some natural inclusion characteristics in the nucleus or some bubbles between the nucleus and the synthetic crystal, so that some Unexperienced people can easily mistakenly think it is a natural crystal. If you look closely, you will find that the inclusions in the nucleus are only found in the sub-nuclear column, and there is a feeling that it is intercepted by an invisible wall. The bubbles between the nucleus and the synthetic crystal are distributed along the wall of the nucleus to form parallel "bubble walls". Some of the bubbles are braided and the heads are arranged outward toward the wall. Natural crystals often have group inclusions arranged along one surface, but this surface is often single and undulating, and the inclusions that make up the surface will be mostly two-phase inclusions under the gem microscope. Not just bubbles. The difference between the two is still obvious.
It is worth noting that in artificial crystals, there are often some deep purple pieces with better orientation, which are easily reminiscent of the characteristics of irregular swatches in natural amethyst. The biggest difference between the two is that the deep purple chromophores in the synthetic amethyst are arranged in a nearly parallel sheet shape, with little difference in size and shape, and the boundary is obvious. The chromophore of natural amethyst is random and irregular, the shade has a change in depth, and the boundary is gradual. If it will be synthesized
The deep purple piece in the amethyst is like a floating "purple piece", and the purple group in the natural amethyst can be regarded as a floating "purple group". This is the main difference between the two.
The third characteristic of artificial crystals is that they are clean and flawless. In addition to the top natural crystals in the natural crystals, the natural crystals often have inclusions and cotton, while the artificial crystals are crystal clear. Individual artificial crystals have bubbles or some solid impurities. Some artificial crystals now have some triangular long tubular pores in which there are green or red powders. The long tube is characterized by being arranged in parallel in one direction, the section is triangular, and there are often uneven green or red powders distributed along the wall, the middle is often empty, and the end of the long tube has a tendency to become sharp. The true natural hair crystal is a crystal containing minerals such as tourmaline, actinolite, rutile, etc. These minerals each have their crystal form, such as the "bamboo-like" form of the actinolite. They are encased in crystals, arranged in a non-directional manner, thick and slender, short and different, often accompanied by inclusions and cotton inherent in natural crystal. The main difference between natural crystal and artificial crystal is that artificial crystals generally see bubbles under the magnifying glass, while natural crystals do not have bubbles; there is always a trace of impurities in the natural crystal, but the artificial crystal is not clean and clean.
Crystal type editing
There are two kinds of artificial crystals:
First, the artificial crystal is very transparent. The sun is basically pure and bright, and the discerning eye knows that there is no such crystal in the world.
The second is the dyeing inside the artificial crystal and imitating the crack. Basically, ordinary glass beads are cracked by heat and quenching, and then dyed.
Artificial crystal growth
Artificial crystal growth
Crystal difference editing
Ordinary glass VS artificial crystal
Artificial crystal is a glass containing lead oxide. The higher the composition of lead oxide, the higher the refractive index and hardness, the more pure and crystallized the finished product, and the more difficult it is to cut, the rarer the finished product. Therefore, the difference between the quality of the crystalware and the ordinary glass or the low-refraction crystal is very large.
Listen to the sound
The sound heard when you hit the vessel by hand is different. The sound of the artificial crystal product is crisp, and there is a feeling of lingering after the impact of the metal. The sound of the metal sound is “铛铛”, the crystal with higher hardness, The louder the sound. The sound of glass products is heavy and has no echo, which is a dull "squeaky" sound.
Look shiny
Compared with the sun, the colorful light reflected by the high-quality crystal is bright, and the transition light is very natural and rich. The color of the glass is often incomplete and dim. The transparency is compared under natural light. The high-quality crystal has a high transparency and shows a crystal white, while ordinary glass or impure crystals will be yellow or cyan.
Ratio pattern
For crystals of the same color, the higher the hand-made degree of the pattern, the finer and more complicated the pattern is formed on a small area, and the higher the value. Hand touched, the surface of the hand-patterned pattern has a rough feel on the surface, and the surface of the mechanism pattern is smooth.
Brand recognition
The choice of artificial crystal products depends on the brand, because only the better factory products have quality and technical guarantees, such as well-known crystal brands: Swarovski, etc., natural crystal brands have jolee, detente, etc.
Specific hardness
Since the hardness of the crystal is much higher than that of ordinary glass, it will not be stained for a long time, and the glass is used for a long time, and it is easy to have scratches and surface stains. Artificial crystals are harder than glass. Therefore, when using artificial crystals to scratch the surface of the glass, there will be a trace, and when the crystal is used to scratch the crystal, there is no such trace.
weight
Two items of the same size, artificial crystal products are heavier than glass, and glass is relatively lighter.
Pujiang County, its products are made of K9 material or lead-containing materials, crystal products work fine, light and elegant, light and cold.


Ultraviolet light
Ultraviolet light can pass through artificial crystals and natural crystals, while ordinary glass cannot.
Artificial crystal VS pure natural crystal
According to the domestic crystal company, the main difference between artificial crystal and natural crystal is that there are impurities in the natural crystal color, cotton-like things, and ice cracks. If it is artificial crystal, sometimes there will be bubbles. The temperature difference between the natural crystal and the artificial crystal is very large, and the artificial feeling does not feel the ice. Can be placed in the water, you can see its transition color. The luster of natural crystal is different from that of man-made. Naturally, it is brighter and more natural. The color will become better when wearing part time, and the fake color will only become darker and darker.
Use editing
The lead glass containing 24% lead oxide is refined, removed by impurities, hand blown, polished and polished, and can be made into high-grade high-quality lead glass artwork. The light can be reflected by the engraved facet.
Cleaning method editing
The maintenance of crystals is called cleaning, that is, degaussing and purification. Whether you use crystal as a charm, decoration or fantasy to use the magical power of crystal, crystals need to be cleaned before they can be used to achieve effective results. Because the crystal has been touched by different people from the moment of mining until your hand, the physical memory of the crystal will fully record their thoughts, fortune and body condition.
Therefore, we must first clear all the information records in the crystal to enter your own information, so when you use the crystal, you will not be affected by the predecessors.
Sunlight degaussing cleaning method
cleaning method:
Simply place the spar in a location that can be directly exposed to sunlight, such as windowsills and terraces; the exposure time is approximately 30 minutes to 1 hour.
Precautions:
(1) The spar will have a focusing effect under sunlight. If paper or other combustible items are placed near the spar, there is a danger of fire.
(2) However, if the chromogen of the spar contains copper and iron, it is not suitable for such cleaning methods. Since these substances are exposed to sunlight for a long time, oxidation occurs, which causes the spar to discolor. The color elements containing copper and iron include crystal stones such as red or purple.
Moonlight Star Morning Radiation
cleaning method:
On the 15th day of the Lunar New Year, because the night is the light of the moon, it is a good time to dry the stone. The method of drying the stone is very simple. Just put the spar on the terrace or window and receive the moonlight for one night. Time is all right. In addition, in the evening, on a bright night, the spar will be placed on the terrace to let it absorb the essence of the starlight to achieve the effect of purifying the spar.
In addition, in addition to the full moon night, you can also choose a few days before and after the full moon, which is also suitable for this type of sun-shaking method.
Precautions:
If the purple or red spar is irradiated, please remember to take the spar back before noon the next day, otherwise the violent sunlight during the day will affect the pigmentation of the spar and make it fade.
Sea salt dipping
cleaning method:
Put the spar into a cup of salt with a proper amount of sea salt (or coarse salt) and dip for three to four hours to dissolve the magnetic field around the spar.
Precautions:
(1) If the spar is inlaid in a metal to make ornaments, such as rings, pendants, etc., please remove the spar from the metal before it is soaked in salt water, otherwise it will affect the color and surface of the metal object. brightness.
(2) Please note that such cleaning methods may cause the contents of the spar to change after cleaning.
In addition, there are sea salt burial method, snow pile burial method, water purification method, aroma purification method, crystal cluster purification method, and natural cleaning.
Process requirements editing
The so-called piebald on the crystal is actually hidden behind the crystal stone. On the front side, we will see the light black water or dark spots in the crystal with different colors and irregular rhymes. In fact, this is crystal. The back surface produces symptoms that appear through the stone. The back of the artificial crystal will be coated with a silver coating during processing to ensure the perfect expression of crystal color and refracting, and the application of this coating is also a big technology in the manufacture of artificial crystal, so if your Jewelry is more durable with the finest crystal manufacturer's ingredients.
Try to keep the crystal jewelry less in contact with water or corrosive liquids. Especially in summer, try to avoid the humid environment. In turn, the crystal back is kept dry, so that the crystal jewelry can always maintain the effect of Bling Bling.
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