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$350.00 USD
Price
2366
9

33.95 Carats Natural Rare ~ Grandidierite Cabochons

SKU
Dimensions (mm)
12.000 x 9.000 x 6.000mm
Weight (cts)
33.950
Treatment
No Treatment
Colours

Grandidierite is a rare mineral that was first discovered in 1902 in southern Madagascar. The mineral was named in honor of French explorer Alfred Grandidier (1836–1912) who studied the natural history of Madagascar

Grandidierites appear bluer in color the more iron (Fe) they contain. A recently discovered gemstone, blue ominelite is the Fe-analogue (Fe, Mg) to grandidierite (Mg, Fe).[4]

Grandidierites display strong trichroic pleochroism. That means they can show three different colors depending on the viewing angle: dark blue-green, colorless (sometimes a very light yellow), or dark green.

While trichroism can usually help distinguish grandidierites from other gems, lazulites can occur with blue-green colors and show colorless/blue/dark blue pleochroism. Nevertheless, lazulites have somewhat higher refractive indices and specific gravity. Grandidierites also have greater hardness.

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Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
Rest of the world
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FedEx $45.00 / 9 days $45.00 / 14 days
United States of America
FedEx is discounted to $45.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $45.00 on orders with 2 or more items
DHL $60.00 / 7 days $60.00 / 10 days
United States of America
DHL is discounted to $60.00 on orders with 2 or more items
Rest of the world
DHL is discounted to $60.00 on orders with 2 or more items

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Audit

The Gemstone Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

Shipping Details

Shipping:
$60.00 10 days via DHL
Ships from:
United States of America

Payment Options

  • paypal

Overview

Listing Type : Standard
Product ID : 1351771
Starts : 21st November 2024 08:16 am PST
* All prices are in USD