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Extreamly Rarest 1.70 Ct Natural Grandidierite Madagascar
- SKU
- Dimensiones (mm)
- 11.900 x 5.800 x 3.800mm
- Peso (cts)
- 1.700
- Treatment
- No Treatment
- Shape
- Oval, Triangle
- Tipo
- Faceted
- Clarity
- SI
- Colores
-
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
- SKU
- Dimensiones (mm)
- 11.900 x 5.800 x 3.800 mm
- Peso (cts)
- 1.700
- Treatment
- No Treatment
- Shape
- Oval, Triangle
- Tipo
- Faceted
- Clarity
- SI
- Colores
-
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
| Proveedor de envío | Envío a: país | Envíos al resto del mundo |
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| Standard Shipping - Tracked | $15.00 / :días días | $15.00 / :días días |
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:país
:proveedor tiene un descuento de $18.00 en pedidos con 2 o más artículos
Resto del mundo
:proveedor tiene un descuento de $18.00 en pedidos con 2 o más artículos
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| FedEx | $50.00 / :días días | $50.00 / :días días |
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:país
:proveedor tiene un descuento de $50.00 en pedidos con 2 o más artículos
Resto del mundo
:proveedor tiene un descuento de $50.00 en pedidos con 2 o más artículos
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PositivoGreat seller, item recieved promptly and as pictured.
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Positivo
Such a pretty stone, beautifully faceted. Thank you
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Negativo
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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Positivo
Golden sparkle. Lovely thank you
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Positivo
Beautiful stone, smooth delivery.
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