Opals
Gemstones
Jewelry
Coins
No has pujado en esta subasta.
Super quality 3.15 Carats Natural Grandidirite Nice Cut Gemstone
- SKU
- Dimensiones (mm)
- 9.500 x 11.300 x 4.700mm
- Peso (cts)
- 3.150
- Tipo
- Faceted
- Shape
- Fancy, Pear
- 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
- SKU
- Dimensiones (mm)
- 9.500 x 11.300 x 4.700 mm
- Peso (cts)
- 3.150
- Tipo
- Faceted
- Shape
- Fancy, Pear
- 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 Thailand | Envíos al resto del mundo |
|---|---|---|
| Standard Shipping - Tracked | $15.00 / 21 días días | $15.00 / 21 días días |
|
Thailand
Standard Shipping - Tracked tiene descuento a $13.00 en pedidos con 3 o más artículos
Resto del mundo
Standard Shipping - Tracked tiene descuento a $15.00 en pedidos con 2 o más artículos
|
||
| FedEx | $30.00 / 7 días días | $30.00 / 7 días días |
|
Thailand
FedEx tiene descuento a $30.00 en pedidos con 3 o más artículos
Resto del mundo
FedEx tiene descuento a $30.00 en pedidos con 3 o más artículos
|
||
-
PositivoPaid and shipped - no feedback left after 100 days
-
Positivo
Paid and shipped - no feedback left after 100 days
-
Positivo
Paid and shipped - no feedback left after 100 days
-
Positivo
-
Positivo
Paid and shipped - no feedback left after 100 days
¿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.
Cuando hay un ícono que indica "Oferta automática", significa que nuestro sistema está realizando ofertas de forma activa para el postor en función de su oferta máxima. Esto puede parecer como si los postores estuvieran pujando más que ellos mismos, pero es simplemente el resultado de que el sistema actualiza la oferta para reflejar el límite máximo del postor.
