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Incredible Color 5.30 Ct Incredible Natural Grandidierite Gemstone
- SKU
- Dimensiones (mm)
- 12.81 x 10.2 x 6.54mm
- Peso (cts)
- 5.3
- Treatment
- No Treatment
- Type
- Faceted
- Colores
-
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
| Proveedor de envío | Envío a Tailandia | Envíos al resto del mundo | Envío combinado ( Tailandia ) | Envío combinado (resto del mundo) |
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- SKU
- Dimensiones (mm)
- 12.81 x 10.2 x 6.54 mm
- Peso (cts)
- 5.3
- Treatment
- No Treatment
- Type
- Faceted
- Colores
-
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
| Proveedor de envío | Envío a Tailandia | Envíos al resto del mundo | Envío combinado ( Tailandia ) | Envío combinado (resto del mundo) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| DHL |
|
|
|
|
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PositivoGood stone, very dark though
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Positivo
Very nice stone, received it earlier than I expected - great customer service.
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Positivo
Bella e brillante grazie
¿Por qué los usuarios se superan a sí mismos?
Cuando se realiza una oferta, este es el monto máximo que una persona está dispuesta a ofertar por el producto. Nuestro sistema ofertará automáticamente en nombre del postor y aumentará la oferta de manera gradual hasta el máximo para mantener su posición como el mejor postor.
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