1. Packing: Sponge paper or plastic bags, foam, standard export cartons, and soft paper.
2. Put gemstones into plastic bags, then put plastic bags into a carton with foam in it.
3. According to customer's demands.
1 - 100
To be negotiated
Strontium titanate is an oxide of strontium and titanium with the chemical formula SrTiO3. At room temperature, it is a centrosymmetric paraelectric material with a perovskite structure. At low temperatures it approaches a ferroelectric phase transition with a very large dielectric constant ~104 but remains paraelectric down to the lowest temperatures measured as a result of quantum fluctuations, making it a quantum paraelectric. It was long thought to be a wholly artificial material, until 1982 when its natural counterpart-discovered in Siberia and named tausonite-was recognised by the IMA. Tausonite remains an extremely rare mineral in nature, occurring as very tiny crystals. Its most important application has been in its synthesized form wherein it is occasionally encountered as a diamond simulant, in precision optics, in varistors, and in advanced ceramics.
The name tausonite was given in honour of Lev Vladimirovich Tauson (1917–1989), a Russian geochemist. Disused trade names for the synthetic product include strontium mesotitanate, Fabulite, Diagem, and Marvelite. Other than its type locality of the Murun Massif in the Sakha Republic, natural tausonite is also found in Cerro Sarambi, Concepción department, Paraguay; and along the Kotaki River of Honshū, Japan.[
Why choose us
1.Over 20 years' experience of producing synthetic and natural gemstones. 2. We own professional and rich experience teamwork ability. 3. Cut rough material produce, and polish all by ourselves. 4. Customized requirement is available. 5. Best and most competitive factory price can be offered. 6. Sample fee can be given back after confirming orders. 7. Small profits but quick turnover is the most important principle. 8. Reply within 24 hours and best service for you. 9. All of our products have been strictly inspected before shipment.
Color and shape
Many size and shape you can choose with a reasonable price.
A+ :side line is uniform; color is uniform; high-low is uniform; but size will have 0.02mm deviation,this is normal;no eye visible from inclusion and crack, but in microscope have some ; good angle form line.
A :Color have some non uniform but still relatively uniform; good angle form line and uniform side line; eyes see have 10%around inclusion and crack.
A- : Color have severity non uniform, good angle form line,eyes see have 30%around inclusion and crack.
AB :Color non uniform,quality is bad,eyes see have more inclusion and crack.