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1.85 Carats Rarest Natural Afghanite Gemstone
- UGS
- Dimensions (mm)
- 10 x 8 x 4mm
- Poids (cts)
- 1.85
- Treatment
- No Treatment
- Type
- Faceted
- Couleurs
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Afghanite, (Na,K)22Ca10[Si24Al24O96](SO4)6Cl6,[1] is a hydrous sodium, calcium, potassium, sulfate, chloride, carbonate alumino-silicate mineral. Afghanite is a feldspathoid of the cancrinite group and typically occurs with sodalite group minerals. It forms blue to colorless, typically massive crystals in the trigonal crystal system. The lowering of the symmetry from typical (for cancrinite group) hexagonal one is due to ordering of Si and Al.[1] It has a Mohs hardness of 5.5 to 6 and a specific gravity of 2.55 to 2.65. It has refractive index values of nω=1.523 and nε=1.529. It has one direction of perfect cleavage and exhibits conchoidal fracture.[3] It fluoresces a bright orange.
Natural Gemstone
Paypal Accepted
| Fournisseur d'expédition | Expédition vers Thaïlande | Expédition dans le reste du monde | Expédition combinée ( Thaïlande ) | Expédition combinée (reste du monde) |
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| Standard Shipping - Tracked |
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| Express Shipping |
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- UGS
- Dimensions (mm)
- 10 x 8 x 4 mm
- Poids (cts)
- 1.85
- Treatment
- No Treatment
- Type
- Faceted
- Couleurs
-
Afghanite, (Na,K)22Ca10[Si24Al24O96](SO4)6Cl6,[1] is a hydrous sodium, calcium, potassium, sulfate, chloride, carbonate alumino-silicate mineral. Afghanite is a feldspathoid of the cancrinite group and typically occurs with sodalite group minerals. It forms blue to colorless, typically massive crystals in the trigonal crystal system. The lowering of the symmetry from typical (for cancrinite group) hexagonal one is due to ordering of Si and Al.[1] It has a Mohs hardness of 5.5 to 6 and a specific gravity of 2.55 to 2.65. It has refractive index values of nω=1.523 and nε=1.529. It has one direction of perfect cleavage and exhibits conchoidal fracture.[3] It fluoresces a bright orange.
Natural Gemstone
Paypal Accepted
| Fournisseur d'expédition | Expédition vers Thaïlande | Expédition dans le reste du monde | Expédition combinée ( Thaïlande ) | Expédition combinée (reste du monde) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| DHL |
|
|
|
|
| Express Shipping |
|
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We deal in all kind of gemstones & minerals crystals/specimens .
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PositifBeautiful stone, photo accurate. Will be a returning customer.
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Positif
Paid and shipped - no feedback left after 100 days
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Positif
Paid and shipped - no feedback left after 100 days
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Positif
It’s beautifull
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Positif
Beautiful stones. Great color.
