good quality 1.3mm heat resistant natural black spinel

Specifications

natural black spinel
1.best after-sale service
2.strict quality control
3.large natural spinel supply

Product name	good quality 1.3mm heat resistant natural black spinel
Material	spinel stone(Lab created)
Manufacturer	Wu Zhou Zuan Fa Gems
Color	black natural black spinel
Shape	round black spinel stone (and a kind of sizes,colors)
Size	1.3mm black spinel or any size is available
Weight	According to the size
Quality	AAAAA,AAAA,AAA,AA,A of cz beads
Recommend this product to	Jewelry maker,jewelry wholesaler,fashion dress company,souvenir maker,gift maker,and others
Function	costume jewelry and other bracelet and earrings, watches decoration, lighting decoration, cellphone decoration, shoes decoration, etc.
Packing	1. Normal packing: Sponge paper or plastic bags,foam,standard export cartons,and soft paper. 2. It is also according to our customer's need.
Payment  terms	We accept T/T,Western Union,Paypal.
Shipment	During 7 working days after receiving your payment. Shipped by EMS,DHL,UPS,Fedex or according to your requirement

 

 

What is synthetic spinel?

Synthetic spinel, was first produced accidentally during an attempt to make a

satisfactory blue synthetic sapphire by the Verneuil process.

The addition of cobalt oxide, which seemed a logical source for the blue sapphire,

was found to give a very uneven coloration. As a result, an attempt was made to

substitute for the cobalt oxides tinctorial agents, but without marked success.

Then it was decided that magnesium oxide might act as a flux when added to the

aluminum oxide and distribute evenly the color imparted by the cobalt oxide.

The color was very even, but a study of the characteristics of the resulting boules showed

that they were squarish in outline. 

Further investigation proved the material to be not sapphire but a magnesium aluminate with the structure of spinel, rather than that of corundum.

 

good quality 1.3mm heat resistant natural black spinel

 

 

 

 

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Established in 1993, Zuan Fa Gems& Jewelry is the most professional manufacturer who is specialized in cubic zirconia, synthetic spinel, synthetic corundum, glass gemstones, and various fashion brass jewelry, silver jewelry, gold jewelry.

Located in the Gemstone Capital- Wuzhou City, Guangxi Province, China, applying advanced auto machine cutting, we have high reputation among clients all over the world for high quality, but favorable price.

Zuan Fa Gems& Jewelry especially owns large production ability in micro pave cubic zirconia and micro pave zircon jewelries. Round brilliant cut & star cut ( Heart &Arrow Cut) cubic zirconia are quite popular, ten million pcs per size one week sold out.

We sincerely hope that each client could find what they want here and enjoy cooperation with Zuan Fa Gems& Jewelry.