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Incredible Color and Quality 3.40 Ct Natural Grandidierite Gemstone SKU A6

3757
1

SKU
Dimensions (mm)
11.350 x 8.900 x 6.300mm
Weight (cts)
3.400
Treatment
No Treatment
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.

Name: GRANDIDIERITE GEMSTONE

Place of Origin: MADAGASCAR

TREATMENT: NATURAL



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Rest of the world
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Overview

Listing Type : Standard
Product ID : 1017834
Starts : 20th December 2024 02:09 am PST
* All prices are in USD