If the crystal you are testing is bead-shaped, when you turn the crystal, in addition to seeing the phenomenon of light and dark changes, you will have amazing discoveries. At a particular angle, you will see a colored interference pattern as shown in the figure below. The pattern is a hollow black cross with colored stripes. Because the red part of the center circle resembles a bull’s eye, we call it a bull’s eye interference pattern.
The reason for the formation of interference patterns is very complicated, but the phenomenon is easy to observe. This kind of bull’s eye interferogram is unique to crystals. In other words, once you see such an interferogram, the gemstone being measured can definitely be crystal. However, it is important to note that synthetic Mercury also has a bull’s-eye interferogram. Therefore, the bull’s-eye interferogram can only prove that the measured gem is not glass, but it cannot prove the naturalness of crystal.
Most of the common crystal bracelets on the market are in the shape of a bead, and the interference pattern can be easily observed with the help of a polarizer. Then the interference pattern can not be seen in other shapes of crystal? Of course not, the interferogram should be found in all cambered crystals, but it is very difficult to see the interferogram if it is a faceted crystal. First, a magnifying glass needs to be added between the gem and the upper polarizer to help converge the light. Second, the gem must be in a specific position. Under the polarizer, although the bull’s eye interferogram can only be observed at a specific angle, as long as it is seen, it can be determined to be a crystal. Therefore, the polarizer is of great significance for the identification of crystals.
At present, the price of portable polarizers on the market is about two to three hundred yuan. If you have a lot of crystals, or you are a super fan of crystals, polarizers are still worth investing in. You can also DIY a simple polarizer with two polarized lenses. It is not that polarized sunglasses can directly replace polarized lenses. When we use polarized light, the path of light should first pass through a polarizer, then through the gem, then through the second polarizer, and finally enter our eyes. It is impossible to let the light travel along the above path when observing the gem with direct light sunglasses. of.
It is precisely because of the travel route of light that when using a polarizer, you also need to pay extra attention, that is, the measured gem must be transparent (at least translucent). Only when the gemstone transmits light can the light finally reach our eyes. If the gem itself is opaque, no matter how you turn the gem, it will undoubtedly look completely black. Therefore, for opaque gems, polarizers are useless. However, crystal does not seem to have to worry about its transparency. Regardless of any type of crystal and all gems that are as transparent as crystal, polarizers are a very useful identification tool.
Finally, let us summarize how the polarizer distinguishes glass and crystal in one second.
1. Turn on the power and turn the upper polarizer until the field of view is completely black.
2. Place the gem on the lower polarizer and rotate the gem to observe the change in light and shade.
3. If the gem is rotated for four times, or if you see a bull’s eye interference pattern, it must be crystal; if the gem is always dark, it is glass.
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JingYing custom made silver earrings jewelry manufacturer production process
The reasons of quality guarantee of JINGYING jewelry
1. Original Designning
It begins when you bring us a design idea or sample changed ,we start original design by sketch as your request. Custom necklace manufacturer
2.Creating 3D Mold
No matter if this is a simple sketch or a full prototype, we are the Experienced and mature design team help you working on bringing it to life as a fully realized piece of jewelry.Custom 925 silver bracelet.
3.Creating Mold ( Metal Master)
We use CNC machining machine carving jewelry model ensure our jewelry goods 100% high quality sterling silver jewelry same as fine jewelry surface smooth and no lost stone .Custom earrings sterling silver manufacturer
4.Casting
Inject wax mold become plaster mold ,after High temperature heating got jewelry metal goods base. Custom made ring silver jewelry
5. Molding & Polish
Modeling jewelry goods more beautiful ,surface smooth. Custom made silver jewelry manufacturer
6. Hand Setting Gemstone
We use Micro-inlaid machine imported from Japan do setting for 5A CZ stones ,can be 99% no lost stone wax setting technology . Custom made men silver jewelry
7. Plating
We do 2-time plating for all 925 sterling silver jewelry ,first do thick silver plating by base ,double posh make sure surface smooth then go on with the real gold plating ,thickness up to 3 microns ensure can last 1years time ,we call it vermail .
8. Perfect QC Process
Quality checking is the most important process in the whole production line .we have a 10-engineer team to do quality checking control by each process .
No lost stone -1,we will use professional steel needle to beat stone one by one ,make sure no fall out .2,we will drop jewelry items at 3 meters to check the stone no fall out .
Plating- 1,customer can get the report from the machine test about the plating thickness make sure get your standard .2,we use professional tools ,manually rub the metal surface for five minutes ,ensure the coat quality is good . Custom wholesale sterling silver
9. Packaging & Shipping
Independent packaging ,or as per customer request；Express delivery by DHL ,UPS,TT
JingYing custom made silver earrings jewelry manufacturer 925 Sterling silver Manufacturer Advantage
1:20-year senior high end 925 sterling silver custom wholesale jewelry maunfacturer
2:Ten of thousands fashion jewelry customized production experience ,monthly production capacity up to 100000 pieces
3: Exquisite workmanship ,surfface smooth.
4:Efficient production,7-day sample time ,30-day mass production time
5:Quality products,does not change color, does not drop the stone, if has the product quality question in non-human reason, guaranteed 3-6 months for repair.
In the past 20 years, JingYing Jewelry has been following the aim of pursuing perfection and improving on the 925 silver jewelry technology.Our design team keeps learning and improving skill ,design fashionable, romantic accessories for feminine.Relying on exquisite design process and excellent quality, JingYing Jewelry has won the familiar and recognition of chain brands at home and abroad.
Occasion:Modern jewelry manufacture wholesale women’s jewelry custom for party and daily trendy jewelry rings for women
Jewelry custom made silver earrings jewelry manufacturer Quality Assurance :
Your jewerly designs and goods must be took pictures before shipment .check your order whether have problem .
Whatever you have any problem with custom jewerly design or mass order once you get the goods ,contact with us (mo@kingjy.com) ,can get refund if quality problems ,do business with us is in safe .
2.Creating 3D Mold
No matter if this is a simple sketch or a full prototype, we are the Experienced and mature design team help you working on bringing it to life as a fully realized piece of jewelry.Custom 925 silver bracelet.
3.Creating Mold ( Metal Master)
We use CNC machining machine carving jewelry model ensure our jewelry goods 100% high quality sterling silver jewelry same as fine jewelry surface smooth and no lost stone .Custom earrings sterling silver manufacturer
4.Casting
Inject wax mold become plaster mold ,after High temperature heating got jewelry metal goods base. Custom made ring silver jewelry
5. Molding & Polish
Modeling jewelry goods more beautiful ,surface smooth. Custom made silver jewelry manufacturer
6. Hand Setting Gemstone
We use Micro-inlaid machine imported from Japan do setting for 5A CZ stones ,can be 99% no lost stone wax setting technology . Custom made men silver jewelry
7. Plating
We do 2-time plating for all 925 sterling silver jewelry ,first do thick silver plating by base ,double posh make sure surface smooth then go on with the real gold plating ,thickness up to 3 microns ensure can last 1years time ,we call it vermail .
8. Perfect QC Process
Quality checking is the most important process in the whole production line .we have a 10-engineer team to do quality checking control by each process .
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