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Extreamly Rarest Ct Natural Blue Grandidierite 1.30ct Madagascar Mined
- SKU
- Dimenzije (mm)
- 7.950 x 6.280 x 4.520mm
- Težina (cts)
- 1.300
- Treatment
- No Treatment
- Boje
-
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
- Dimenzije (mm)
- 7.950 x 6.280 x 4.520 mm
- Težina (cts)
- 1.300
- Treatment
- No Treatment
- Boje
-
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
| Pružatelj usluge dostave | Dostava u Thailand | Dostava u ostatak svijeta |
|---|---|---|
| Standard Shipping - Tracked | $15.00 / :dani dani | $15.00 / :dani dani |
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:zemlja
Standard Shipping - Tracked je snižen na $15.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Standard Shipping - Tracked je snižen na $15.00 na narudžbe s 2 ili više artikala
|
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| DHL | $30.00 / :dani dani | $30.00 / :dani dani |
|
:zemlja
DHL je snižen na $30.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
DHL je snižen na $30.00 na narudžbe s 2 ili više artikala
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PozitivanWonderful stone and good seller
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Neutralan
Beautiful stone. Took a month to ship only after reaching out to the seller but arrived quickly thereafter.
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Neutralan
Beautiful stones. Took a month to ship only after reaching out to the seller but arrived quickly thereafter.
