Incredible Color 4.85 Ct Incredible Natural Grandidierite Gemstone
- SKU
- Dimensiones (mm)
- 12.98 x 11 x 4.6mm
- Peso (cts)
- 4.85
- 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 | Destino | Costo |
|---|---|---|
| Standard Shipping - Tracked Por defecto |
Resto del mundo
21 días días
|
primer artículo
por artículo adicional
Envío limitado a
|
| DHL |
Resto del mundo
10 días días
|
primer artículo
por artículo adicional
Envío limitado a
|
| Standard Shipping - Tracked Por defecto |
Tailandia
15 días días
|
primer artículo
por artículo adicional
Envío limitado a
|
| DHL |
Tailandia
10 días días
|
primer artículo
por artículo adicional
Envío limitado a
|
- SKU
- Dimensiones (mm)
- 12.98 x 11 x 4.6 mm
- Peso (cts)
- 4.85
- 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 | Destino | Costo |
|---|---|---|
| Standard Shipping - Tracked Por defecto |
Resto del mundo
21 días días
|
primer artículo
por artículo adicional
Envío limitado a
|
| DHL |
Resto del mundo
10 días días
|
primer artículo
por artículo adicional
Envío limitado a
|
| Standard Shipping - Tracked Por defecto |
Tailandia
15 días días
|
primer artículo
por artículo adicional
Envío limitado a
|
| DHL |
Tailandia
10 días días
|
primer artículo
por artículo adicional
Envío limitado a
|
-
PositivoNice stone
-
PositivoExactly as pictured. Well cut, packaged and timely postage. Thank you would purchase again from this seller.
-
NegativoSeller unreliable: claimed shipping issues without proof, pushed expensive method, then shipped anyway. I was charged an extra ~$40 without approval or refund of the original shipping fee.
-
PositivoLovely gems. Just as pictured. Thank you.
-
PositivoAbsolutely perfect gem. Beautiful color. Thank you.