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Extreamly Rarest 1.70 Ct Natural Grandidierite Madagascar
- 存货单位
- 尺寸（毫米）
- 11.900 x 5.800 x 3.800mm
- 重量 (cts)
- 1.700
- Treatment
- No Treatment
- Shape
- Oval, Triangle
- 类型
- Faceted
- Clarity
- SI
- 颜色
-
Grandidierite Gemstone :
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
- 存货单位
- 尺寸（毫米）
- 11.900 x 5.800 x 3.800 mm
- 重量 (cts)
- 1.700
- Treatment
- No Treatment
- Shape
- Oval, Triangle
- 类型
- Faceted
- Clarity
- SI
- 颜色
-
Grandidierite Gemstone :
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
| 运输商 | 运送至：国家 | 运送到世界其他地区 |
|---|---|---|
| Standard Shipping - Tracked | $15.00 / ：几天天 | $15.00 / ：几天天 |
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：国家
Standard Shipping - Tracked 对包含 2 或更多商品的订单折扣为 $18.00
世界其他地区
Standard Shipping - Tracked 对包含 2 或更多商品的订单折扣为 $18.00
|
||
| FedEx | $50.00 / ：几天天 | $50.00 / ：几天天 |
|
：国家
FedEx 对包含 2 或更多商品的订单折扣为 $50.00
世界其他地区
FedEx 对包含 2 或更多商品的订单折扣为 $50.00
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积极的Great seller, item recieved promptly and as pictured.
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积极的
Such a pretty stone, beautifully faceted. Thank you
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消极的
Argemsjewelry shipped item to wrong address and zip code, I did not receive item, then have to go through a long refund process. I would save myself time and not buy from this seller again.
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积极的
Golden sparkle. Lovely thank you
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积极的
Beautiful stone, smooth delivery.
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