Opals
Gemstones
Jewelry
Coins
Geen reserve edelstenen
Geen reserve-opalen
Geen reservejuwelen
Geen reservemunten
Bekijk alle foto's (6)
Extreamly Rarest Ct Natural Blue Grandidierite 1.30ct Madagascar Mined
- SKU
- Afmetingen (mm)
- 7.950 x 6.280 x 4.520mm
- Gewicht (cts)
- 1.300
- Treatment
- No Treatment
- Kleuren
-
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
- Afmetingen (mm)
- 7.950 x 6.280 x 4.520 mm
- Gewicht (cts)
- 1.300
- Treatment
- No Treatment
- Kleuren
-
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
| Verzend provider | Verzending naar:land | Verzending naar de rest van de wereld |
|---|---|---|
| Standard Shipping - Tracked | $15.00 / :dagen dagen | $15.00 / :dagen dagen |
|
:land
Standard Shipping - Tracked wordt verdisconteerd tot $15.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
Standard Shipping - Tracked wordt verdisconteerd tot $15.00 bij bestellingen met 2 of meer artikelen
|
||
| DHL | $30.00 / :dagen dagen | $30.00 / :dagen dagen |
|
:land
DHL wordt verdisconteerd tot $30.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
DHL wordt verdisconteerd tot $30.00 bij bestellingen met 2 of meer artikelen
|
||
-
PositiefVery nice stone!!! Very well cut, nice reflections. Thanks!
