8.03 Crt Tanzanite AAA Top Quality Faceted Gemstone
- SKU
- 寸法(mm)
- 17.6 x 10.5 x 7.9mm
- 重さ (CT)
- 8.03
- Type
- Faceted
- 色
-
Tanzanite is the blue and violet variety of the mineral zoisite (a calcium aluminium hydroxyl sorosilicate) belonging to the epidotegroup. The gemstone was discovered by Manuel d’Souza in the Merelani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro. Tanzanite is only found in Tanzania, in a very small mining area (approximately 7 km long and 2 km wide) near the Mirerani Hills.
Tanzanite is noted for its remarkably strong trichroism, appearing alternately blue, violet and burgundy depending on crystalorientation. Tanzanite can also appear differently when viewed under alternate lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. In its rough state tanzanite is usually colored a reddish brown, and much of it requires heat treatment to remove the brownish “veil” and bring out the blue violet of the stone.
Description:
Treatment : HEATED
Clarity : VS
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- SKU
- 寸法(mm)
- 17.6 x 10.5 x 7.9 mm
- 重さ (CT)
- 8.03
- Type
- Faceted
- 色
-
Tanzanite is the blue and violet variety of the mineral zoisite (a calcium aluminium hydroxyl sorosilicate) belonging to the epidotegroup. The gemstone was discovered by Manuel d’Souza in the Merelani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro. Tanzanite is only found in Tanzania, in a very small mining area (approximately 7 km long and 2 km wide) near the Mirerani Hills.
Tanzanite is noted for its remarkably strong trichroism, appearing alternately blue, violet and burgundy depending on crystalorientation. Tanzanite can also appear differently when viewed under alternate lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. In its rough state tanzanite is usually colored a reddish brown, and much of it requires heat treatment to remove the brownish “veil” and bring out the blue violet of the stone.
Description:
Treatment : HEATED
Clarity : VS
| プロバイダー | 行き先 | 料金 |
|---|---|---|
| Standard Shipping - Tracked デフォルト |
その他の地域
21
|
最初のアイテム
追加アイテムごとに
送料上限
|
| FedEx |
その他の地域
7
|
最初のアイテム
追加アイテムごとに
送料上限
|
| Registered Shipping |
その他の地域
21
|
最初のアイテム
追加アイテムごとに
送料上限
|
| Standard Shipping - Tracked デフォルト |
タイ
7
|
最初のアイテム
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送料上限
|
| FedEx |
タイ
3
|
最初のアイテム
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送料上限
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| Registered Shipping |
タイ
7
|
最初のアイテム
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Excellent service, seller and item
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ポジティブThank you for this sapphire. It arrived as described. It is beautiful and came with its certificate.