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Extreamly Rarest Ct Natural Blue Grandidierite 0.95ct Madagascar Mined
- Artikelnummer
- Abmessungen (mm)
- 7.780 x 5.810 x 3.840mm
- Gewicht (cts)
- 0.950
- 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)
- 7.780 x 5.810 x 3.840 mm
- Gewicht (cts)
- 0.950
- 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 | $15.00 / :Tage Tage | $15.00 / :Tage Tage |
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Standard Shipping - Tracked erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $15.00
Rest der Welt
Standard Shipping - Tracked erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $15.00
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| DHL | $30.00 / :Tage Tage | $30.00 / :Tage Tage |
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:Land
DHL erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $30.00
Rest der Welt
DHL erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $30.00
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PositivAwesome great seller quick shipment thank you
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Positiv
Incredible brilliance! Fast shipping!
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Positiv
Paid and shipped - no feedback left after 100 days
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Positiv
Paid and shipped - no feedback left after 100 days
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Positiv
Paid and shipped - no feedback left after 100 days
