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33.95 Carats Natural Rare ~ Grandidierite Cabochons
- UGS
- Dimensions (mm)
- 12 x 9 x 6mm
- Poids (cts)
- 33.95
- Treatment
- No Treatment
- Couleurs
-
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.
Paypal Accepted| Fournisseur d'expédition | Expédition vers Pakistan | Expédition dans le reste du monde | Expédition combinée ( Pakistan ) | Expédition combinée (reste du monde) |
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- UGS
- Dimensions (mm)
- 12 x 9 x 6 mm
- Poids (cts)
- 33.95
- Treatment
- No Treatment
- Couleurs
-
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.
Paypal Accepted| Fournisseur d'expédition | Expédition vers Pakistan | Expédition dans le reste du monde | Expédition combinée ( Pakistan ) | Expédition combinée (reste du monde) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
| UPS |
|
|
|
|
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PositifYour gemstone is genuine and matching with picture. You are a honest seller. Will do more business with you
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Positif
Your gemstone is genuine and matching with picture. You are a honest seller. Will do more business with you
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Positif
Your gemstone is genuine and matching with picture. You are a honest seller. Will do more business with you
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Positif
Your gemstone is genuine and matching with picture. You are a honest seller. Will do more business with you
-
Positif
Your gemstone is genuine and matching with picture. You are a honest seller. Will do more business with you
