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$23.00
Current Bid
11
Bids
Closed
11/11/2019 06:52 am
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3

NR - 5.20 Carats Rare Natural Rare Grandidierite Cabochon

SKU
Dimensions (mm)
11.000 x 10.000 x 5.000mm
Weight (cts)
5.200
Type
Bead
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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FedEx $20.00 / 5 days $40.00 / 14 days
Rest of the world
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royaalstones
royaalstones
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Bangkok, Thailand
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Bids History (11)
seansgemstones
Purchased from this seller previously
4 years ago
$22.00
4 years ago
Automated Bid
$21.00
4 years ago
$17.00
seansgemstones
Purchased from this seller previously
4 years ago
Automated Bid
$16.00
seansgemstones
Purchased from this seller previously
4 years ago
$10.00
4 years ago
Automated Bid
$9.00
4 years ago
$8.00
leslie713
Purchased from this seller previously
4 years ago
Automated Bid
$7.00
leslie713
Purchased from this seller previously
4 years ago
Automated Bid
$3.00
4 years ago
$2.00
leslie713
Purchased from this seller previously
4 years ago
$1.00

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Shipping Details

Shipping:
$13.00 25 days via Standard Shipping - Tracked
Ships from:
Thailand

Payment Options

  • paypal
  • stripe

Overview

Listing Type : Standard
Product ID : 1054627
Starting Bid : $1
Starts : 8th November 2019 12:52 am AEST
Ends : 12th November 2019 12:52 am AEST
* All prices are in USD