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4.75 Ct Incredible Natural Grandidierite Gemstone SKU A19

2798
9

SKU
Afmetingen (mm)
14.570 x 10.520 x 5.530mm
Gewicht (cts)
4.750
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


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DHL $35.00 / 10 $35.00 / 10
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DHL krijgt korting op $30.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
DHL krijgt korting op $30.00 bij bestellingen met 2 of meer artikelen

mineralscollection
mineralscollection
Bangrak , Thailand
Geverifieerd
5551 feedback

  • uglyogre
    uglyogre
    Positief

    Very good color. Promptly shipped. Arrived with no documentation.

  • graphicequaliser
    graphicequaliser
    Positief

    An utterly angelic and charming sparkler, and incredibly clean. It arrived quickly too. Thank you so much

  • graphicequaliser
    graphicequaliser
    Positief

    Even lovelier in real life. A real beauty. Thanks.

  • ir888
    ir888
    Positief

    Despite the beveled pavilion, the stone shines due to its excellent cut.

Audit

Dit product is gecontroleerd door een Gemstone Sheriff en zij hebben het volgende gevonden:
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Comments

The Verified Seller has provided accurate and complete information for this item including weight, dimensions, and treatment.

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Verzendgegevens

Verzenden:
$13.00 21 dagen via Standard Shipping - Tracked
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Thailand

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Overzicht

Vermeldingstype : Standard
Product-ID : 1061726
Begint : 21st December 2024 12:33 am PST
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