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No Reserve ~ 5.25 Carats Rare Grandidierite Cabochon
- SKU
- Auction ~ 4
- Dimensions (mm)
- 13.000 x 10.000 x 6.000mm
- Weight (cts)
- 5.250
- Treatment
- No Treatment
- Clarity
- SI
- Type
- Cabochon
- Shape
- Oval
- Colours
-
DESCRIPTION
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.
WE OFFER TOP-QUALITY NATURAL GOODS, THAT IS THE BEST QUALITY CUT AND POLISH PIECE FOR AUCTION MAKE YOUR OWN BID TO WIN VERY BEAUTIFUL QUALITY GOODS.
VISIT OUR STORE FOR BUY NOW AND BEST OFFER ITEMS
BUYER MUST PAY BETWEEN 2 DAYS OF AUCTION END OTHERWISE ORDER WILL BE CANCEL
CHECK OUT OUR MORE ITEMS IN OUR STORE THERE YOU CAN GET MANY BEAUTIFUL GEMSTONES, BEADS, AND JEWELRY ALSO MINERALS SPECIMENS
IF YOU HAVE ANY PROBLEM WITH RECEIVING ITEM PLEASE DO NOT PUT NEGATIVE FEEDBACK WE ARE WELCOME TO SOLVE ALL YOUR PROBLEMS REFUND, RE-POLISH, RETURN, OR EXCHANGE ALL ACCEPTED, WE WILL NEVER LET YOU UPSET FROM US IN SHA ALLAH
VISIT OUR STORE FOR BUY NOW AND BEST OFFER ITEMS
WE ACCEPT PAYPAL ONLY PAYPAL
- SKU
- Auction ~ 4
- Dimensions (mm)
- 13.000 x 10.000 x 6.000 mm
- Weight (cts)
- 5.250
- Treatment
- No Treatment
- Clarity
- SI
- Type
- Cabochon
- Shape
- Oval
- Colours
-
DESCRIPTION
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.
WE OFFER TOP-QUALITY NATURAL GOODS, THAT IS THE BEST QUALITY CUT AND POLISH PIECE FOR AUCTION MAKE YOUR OWN BID TO WIN VERY BEAUTIFUL QUALITY GOODS.
VISIT OUR STORE FOR BUY NOW AND BEST OFFER ITEMS
BUYER MUST PAY BETWEEN 2 DAYS OF AUCTION END OTHERWISE ORDER WILL BE CANCEL
CHECK OUT OUR MORE ITEMS IN OUR STORE THERE YOU CAN GET MANY BEAUTIFUL GEMSTONES, BEADS, AND JEWELRY ALSO MINERALS SPECIMENS
IF YOU HAVE ANY PROBLEM WITH RECEIVING ITEM PLEASE DO NOT PUT NEGATIVE FEEDBACK WE ARE WELCOME TO SOLVE ALL YOUR PROBLEMS REFUND, RE-POLISH, RETURN, OR EXCHANGE ALL ACCEPTED, WE WILL NEVER LET YOU UPSET FROM US IN SHA ALLAH
VISIT OUR STORE FOR BUY NOW AND BEST OFFER ITEMS
WE ACCEPT PAYPAL ONLY PAYPAL
Shipping provider | Shipping to United States of America | Shipping to rest of world |
---|---|---|
Standard Shipping - Tracked | $20.00 / 15 days | $20.00 / 25 days |
United States of America
Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
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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
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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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Positive
Very nice
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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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Positive
Paid and shipped - no feedback left after 100 days
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