离岸价格
Get Latest Price600 ~ 700 / Gram ( Negotiable )
|100 Gram Minimum Order
国:
Tanzania
モデル番号:
Tanzanite Stone
离岸价格:
600 ~ 700 / Gram ( Negotiable ) Get Latest Price
ロケーション:
TANZANITE
最低注文量の価格:
600 per Gram
最低注文量:
100 Gram
パッケージの詳細:
METAL BOX
納期:
10
供給能力:
10000 Gram per Month
支払いタイプ:
T/T, Western Union, Money Gram, PayPal
製品グループ :
連絡先担当者 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.
| 国: | Tanzania |
| モデル番号: | Tanzanite Stone |
| 离岸价格: | 600 ~ 700 / Gram ( Negotiable ) Get Latest Price |
| ロケーション: | TANZANITE |
| 最低注文量の価格: | 600 per Gram |
| 最低注文量: | 100 Gram |
| パッケージの詳細: | METAL BOX |
| 納期: | 10 |
| 供給能力: | 10000 Gram per Month |
| 支払いタイプ: | T/T, Western Union, Money Gram, PayPal |
| 製品グループ : | TANZANITE |
