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NR - 4.80 Carats Rare Natural Rare Grandidierite Gemstone
- SKU
- Dimensions (mm)
- 13 x 11 x 6mm
- Weight (cts)
- 4.8
- Treatment
- No Treatment
- Type
- Faceted
- Colours
-
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.
| Provider | Destination | Cost |
|---|---|---|
| Standard Shipping - Tracked Default |
Rest of World
25 days
|
first item
per additional item
shipping capped at
|
| Express Shipping |
Rest of World
15 days
|
first item
per additional item
shipping capped at
|
| Standard Shipping - Tracked Default |
Pakistan
18 days
|
first item
per additional item
shipping capped at
|
| Express Shipping |
Pakistan
14 days
|
first item
per additional item
shipping capped at
|
- SKU
- Dimensions (mm)
- 13 x 11 x 6 mm
- Weight (cts)
- 4.8
- Treatment
- No Treatment
- Type
- Faceted
- Colours
-
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.
| Provider | Destination | Cost |
|---|---|---|
| Standard Shipping - Tracked Default |
Rest of World
25 days
|
first item
per additional item
shipping capped at
|
| Express Shipping |
Rest of World
15 days
|
first item
per additional item
shipping capped at
|
| Standard Shipping - Tracked Default |
Pakistan
18 days
|
first item
per additional item
shipping capped at
|
| Express Shipping |
Pakistan
14 days
|
first item
per additional item
shipping capped at
|
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Positive
The Pink Tourmaline is stunning - fast shipment.
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Positive
Very nice gemstone. Thank you.
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Positive
Paid and shipped - no feedback left after 100 days
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Positive
Paid and shipped - no feedback left after 100 days
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Positive
Paid and shipped - no feedback left after 100 days
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