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NR - 12.15 Carats Rare Natural Rare Grandidierite Cabochon
- 存貨單位
- 尺寸（毫米）
- 15.000 x 12.000 x 8.000mm
- 重量 (cts)
- 12.150
- Treatment
- No Treatment
- 類型
- Bead
- 顏色
-
Grandidierite was first discovered in 1902 in Madagascar by Alfred Lacroix, a French mineralogist. Lacroix named the mineral in honor of French explorer and naturalist Alfred Grandidier (1836–1912), the first authority on the natural history of Madagascar.
Since its initial discovery, samples of Grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Sri Lanka. But the few gem quality specimens have come mainly from Madagascar.
Gem-quality Grandidierite is extremely rare, and it often appears on the list of the 10 rarest varieties in the world, along with gems like jeremejevite, painite, benitoite and taafeite.
Gemologically, Grandidierite is a magnesium aluminum borosilicate. It has a hardness of 7 to 7.5 on the Mohs scale, similar to garnet; a density of 2.85 to 3.00, in the approximate range of tourmaline; and a refractive index of 1.590-1.623.
Name: GRANDIDIERITE GEMSTONE
Place of Origin: MADAGASCAR
TREATMENT: NATURAL
- 存貨單位
- 尺寸（毫米）
- 15.000 x 12.000 x 8.000 mm
- 重量 (cts)
- 12.150
- Treatment
- No Treatment
- 類型
- Bead
- 顏色
-
Grandidierite was first discovered in 1902 in Madagascar by Alfred Lacroix, a French mineralogist. Lacroix named the mineral in honor of French explorer and naturalist Alfred Grandidier (1836–1912), the first authority on the natural history of Madagascar.
Since its initial discovery, samples of Grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Sri Lanka. But the few gem quality specimens have come mainly from Madagascar.
Gem-quality Grandidierite is extremely rare, and it often appears on the list of the 10 rarest varieties in the world, along with gems like jeremejevite, painite, benitoite and taafeite.
Gemologically, Grandidierite is a magnesium aluminum borosilicate. It has a hardness of 7 to 7.5 on the Mohs scale, similar to garnet; a density of 2.85 to 3.00, in the approximate range of tourmaline; and a refractive index of 1.590-1.623.
Name: GRANDIDIERITE GEMSTONE
Place of Origin: MADAGASCAR
TREATMENT: NATURAL
| 運輸商 | 運送至：國家 | 運送到世界其他地區 |
|---|---|---|
| Standard Shipping - Tracked | $13.00 / ：幾天天 | $13.00 / ：幾天天 |
|
：國家
Standard Shipping - Tracked 對包含 2 或更多商品的訂單折扣為 $13.00
世界其他地區
Standard Shipping - Tracked 對包含 2 或更多商品的訂單折扣為 $13.00
|
||
| FedEx | $20.00 / ：幾天天 | $40.00 / ：幾天天 |
|
世界其他地區
FedEx 對包含 2 或更多商品的訂單折扣為 $30.00
|
||
-
積極的Beautiful gems. I recommend this seller to everyone looking for great business and honest service
-
積極的
I recommend this seller. Beautiful Kunzite! Thank you
為什麼用戶出價高於自己？
出價時，這是用戶願意為產品出價的最高金額。然後，我們的系統將代表該用戶自動出價，逐步提高出價以保持其作為最高出價者的地位，直至達到指定的最高價。
當出現“自動出價”圖標時，表示我們的系統正在根據用戶的最高出價主動為用戶出價。這可能看起來好像用戶出價高於自己，但這只是系統更新出價以反映用戶最高限額的結果。
