The chemical composition of crystal is pure silica with a specific gravity of 2.66, which is very stable. Unlike other gems, which contain many other elements or contained substances, the specific gravity will be in a range. Its refractive index is 1.544～1.553. , The birefringence difference is 0.009, the dispersion rate is 0.013, and the hardness is 7, which are high-hardness gems. Many building materials use quartz bricks to emphasize its durability by using its anti-wear properties.
Crystal (quartz) is widely used in industry, mainly because the crystal has piezoelectric effect Piezoelectricity. After the crystal is pressurized, it will carry positive and negative charges at both ends and release a stable vibration frequency. This feature is used in watches and clocks. Most of the above mentioned can guarantee the long-term accuracy of the clock; many spiritual practitioners or qigong practitioners believe that the magnetic field of crystal is very strong, mostly because of this piezoelectric effect.
The classification of crystals is mainly based on the color and appearance characteristics. The crystals we generally refer to generally refer to colorless and transparent quartz. The names of other crystals refer to the crystal by color, such as amethyst, citrine, etc. Or it can be called by external characteristics, such as sprinkled gold quartz, hair crystal, etc.
Origin of crystal: Quartz is the most abundant mineral in the earth’s crust, so there are many origins of crystal, but the output of various crystals varies depending on the type. At present, the most important exporting country of crystal in the world is also the largest origin. Brazil, other origins include India, Sri Lanka, Madagascar, the United States, Mexico, Uruguay, Germany, Scotland, Switzerland, Spain, Hungary and South Africa.
OEM/ODM jewelry manufacturer design custom your own jewelry
LET’S GET STARTED : mo@kingjy.com
GuangZhou JingYing focus on custom wholesale ring necklaces bracelets earrings sterling silver 925 jewelry,sterling silver gold plated with 18K,14K,24K yellow gold,white gold and rose gold.It is able to custom sterling silver jewelry various design,logo brand or other words by laser engraving according to the customer’s requirement.
Our monthly production capacity is up to 50,000 piece bracelets necklace earrings ring jewelry.JingYing entering into a partnership with supermarkets,jewelry chain shop,outlet stores,jewelry wholesaler,traders and jewelry brand company,professional provide create customized jewelry and mass production of high quality 925 sterling silver jewelry service.
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 .
OEM/ODM jewelry manufacturer design custom your own jewelry
LET’S GET STARTED : mo@kingjy.com
GuangZhou JingYing focus on custom wholesale ring necklaces bracelets earrings sterling silver 925 jewelry,sterling silver gold plated with 18K,14K,24K yellow gold,white gold and rose gold.It is able to custom sterling silver jewelry various design,logo brand or other words by laser engraving according to the customer’s requirement.
Our monthly production capacity is up to 50,000 piece bracelets necklace earrings ring jewelry.JingYing entering into a partnership with supermarkets,jewelry chain shop,outlet stores,jewelry wholesaler,traders and jewelry brand company,professional provide create customized jewelry and mass production of high quality 925 sterling silver jewelry service.
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 .