Precio FOB
Obtener el precio más reciente600 ~ 700 / Gram ( Negotiable )
|100 Gram Minimum Order
País:
Tanzania
N º de Modelo:
Tanzanite Stone
Precio FOB:
600 ~ 700 / Gram ( Negotiable ) Obtener el precio más reciente
Lugar de origen:
TANZANITE
Precio de pedido mínimo:
600 per Gram
Cantidad de pedido mínimo:
100 Gram
Detalle de embalaje:
METAL BOX
El tiempo de entrega:
10
Capacidad de suministro:
10000 Gram per Month
Tipo de pago:
T/T, Western Union, Money Gram, PayPal
Grupo de productos :
Persona de contacto Mr. Mohammed
MBEZI BEACH, DAR ES SALAAM, KINONDONI
Tanzanite has a vitreous luster with a relatively low hardness of 6.5 on the Mohs scale. As a result of its lower hardness, tanzanite jewellery should be stored and handled with care to avoid scratching.
| Fiche technique | |
|---|---|
| Chemical composition |
Calcium aluminium silicate with hydroxyl |
| Crystalline system |
Orthorhombic |
| Cleavage |
Moderately easy to easy |
| Refractive index |
1,****1,**0 |
| Birefringence |
0,****0.**3 |
| Specific gravity |
2.***2.*0 |
| Anisotropic |
Tanzanite is anisotropic; when untreated it displays a strong trichroism of blue, yellow, and pink while heat-treated stones display strong dichroism of blue and violet. |
Gemmologists can use many tools to identify tanzanite. Tanzanite displays strong pleochroism that can often be seen with the unaided eye however, a small portable instrument called a dichroscope can be used to see tanzanites diagnostic pleochroic colours. Tanzanite does not have any diagnostic inclusions but magnification can sometimes reveal internal fissures. Due to its low hardness, tanzanite in jewellery may show scratches and chips due to wear.
Rough tanzanite is often found as crystal fragments but can also present as well-shaped orthorhombic prisms with striated faces. Transparent material is facetted and more included translucent material can be fashioned as cabochons.
| País: | Tanzania |
| N º de Modelo: | Tanzanite Stone |
| Precio FOB: | 600 ~ 700 / Gram ( Negotiable ) Obtener el precio más reciente |
| Lugar de origen: | TANZANITE |
| Precio de pedido mínimo: | 600 per Gram |
| Cantidad de pedido mínimo: | 100 Gram |
| Detalle de embalaje: | METAL BOX |
| El tiempo de entrega: | 10 |
| Capacidad de suministro: | 10000 Gram per Month |
| Tipo de pago: | T/T, Western Union, Money Gram, PayPal |
| Grupo de productos : | TANZANITE |
