Sapphire Gem For Necklace Lab Created Fashioable Red Color

Minimum Order Quantity:1pcs
Delivery Time:According to quantity
Payment Terms:T/T, Western Union
Place of Origin:Chongqing, China
Price:280USD-500USD
Supply Ability:1000PCS per month
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Location: Chongqing Chongqing China
Address: Room 2-11,No.50 Yunhan Road,Chongqing China
Supplier`s last login times: within 1 hours
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Sapphire Gem For Necklace Lab Created Fashioable Red Color


Sapphire, which is derived from the Latin Spphins, which means blue; it belongs to the corundum group of minerals in the trigonal crystal system. In the gem world, all colors of gem-grade corundum other than rubies are called sapphires.


The main component of sapphire is alumina (Al2O3). Corundum contains trace elements such as iron (Fe) and titanium (Ti), and presents colors such as blue, sky blue, and light blue, among which the bright sky blue is the best.


Synthetic rubies and sapphires are very similar in appearance and nature to natural sapphires, so it is difficult to distinguish them. Now mainly according to the sample internal package differences for identification, such as synthetic ruby often contains bubbles, fine arc lines and so on. If the package is small, these phenomena may not be observed with a magnifying glass, and an optical microscope is needed to observe the energy-picking resolution.


GeneralChemical FormulaAl2O3
Cystal SystemHexagonal system
Melting Temperature2040℃
ThermalThermal ExpansionParallel to C-axis:6.7*10-6
Perpendicular to C-axis:5.0*10-6
Specific Heat0.18 Cal/gm°K(25℃)
MechanicalDensity3.98-4.1g/cm3
Hardness9 Moh's Scale
(Hv)≥1700kg/mm2
Modulus of Elasticity340-380Gpa
Compressive Strength2.1Gpa
Tensile Strength0.19Gpa
OpticalIndex of RefractionParallel to C-axis:1.769
Perpendicular to C-axis:1.769
Index of IR Transmission85%
ElectricalElectrical Resistance>1016Ω/cm(25℃)
Dielectric Constant7.5-10
ChemicalErosion ResistanceCan not be corroded by adid or alkali at mormal temperature, only can be corroded by HF at 300℃


Why US?


1. We’re the rare source manufacturer of color sapphire boule, and the most professional factory of sapphire processing, especially the special watch case.

2. We have our own sapphire grown equipent with CZ and KY method.

3. Professional customized production according to the drawing provided by clients.

4. Precision work of sapphire processing and polishing.

5. Experienced technicians and skilled workers.


FQA

1. Are you a trading company or factory?

We are a professional factory of sapphire products, also a trading company .


2.Can you do customized products?

Yes, we specialized in customized production or OEM work.

CAD,3D drawing are needed.


3.Could you provide samples?

Yes, we could provide samples with a charge, but if you place the order with a quality above 100pcs, the sample charge will be refunded.


4.What’s the delivery time?

It depends on the type of products and the quality.

For watch case, the regular time is around 5-8 weeks for 200pcs according to the difficulty of the processing.


5.How about the payment?

T/T payment is prefered.


6.How about the delivery?

Mostly by air, like DHL, Fedex.


China Sapphire Gem For Necklace Lab Created Fashioable Red Color supplier

Sapphire Gem For Necklace Lab Created Fashioable Red Color

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