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Incredible Color and Quality 3.40 Ct Natural Grandidierite Gemstone SKU A6
- Artikelnummer
- Abmessungen (mm)
- 11.350 x 8.900 x 6.300mm
- Gewicht (cts)
- 3.400
- Treatment
- No Treatment
- Farben
-
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
- Artikelnummer
- Abmessungen (mm)
- 11.350 x 8.900 x 6.300 mm
- Gewicht (cts)
- 3.400
- Treatment
- No Treatment
- Farben
-
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
| Versandanbieter | Versand nach:Land | Versand in den Rest der Welt |
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| Standard Shipping - Tracked | $10.00 / :Tage Tage | $13.00 / :Tage Tage |
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Standard Shipping - Tracked erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $15.00
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| DHL | $35.00 / :Tage Tage | $35.00 / :Tage Tage |
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DHL erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $30.00
Rest der Welt
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PositivThank you for the opportunity to buy great gemstones
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Positiv
I’m pleased with the sapphire. I will be buying again.
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Positiv
This is stunning. Really happy. Arrived quickly too.
