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1.85 Carats Rarest Natural Afghanite Gemstone
- Artikelnummer
- Abmessungen (mm)
- 10.000 x 8.000 x 4.000mm
- Gewicht (cts)
- 1.850
- Treatment
- No Treatment
- Typ
- Faceted
- Farben
-
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
- Artikelnummer
- Abmessungen (mm)
- 10.000 x 8.000 x 4.000 mm
- Gewicht (cts)
- 1.850
- Treatment
- No Treatment
- Typ
- Faceted
- Farben
-
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
| Versandanbieter | Versand nach Thailand | Versand in den Rest der Welt |
|---|---|---|
| Standard Shipping - Tracked | $12.00 / 15 | $12.00 / 15 |
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Thailand
Standard Shipping - Tracked erhält Rabatt auf $7.00 bei Bestellungen mit 2 oder mehr Artikeln
Rest der Welt
Standard Shipping - Tracked erhält Rabatt auf $7.00 bei Bestellungen mit 2 oder mehr Artikeln
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| DHL | $22.00 / 8 | $22.00 / 10 |
|
Thailand
DHL erhält Rabatt auf $22.00 bei Bestellungen mit 2 oder mehr Artikeln
Rest der Welt
DHL erhält Rabatt auf $22.00 bei Bestellungen mit 2 oder mehr Artikeln
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| Express Shipping | $22.00 / 8 | $22.00 / 8 |
|
Thailand
Express Shipping erhält Rabatt auf $22.00 bei Bestellungen mit 2 oder mehr Artikeln
Rest der Welt
Express Shipping erhält Rabatt auf $22.00 bei Bestellungen mit 2 oder mehr Artikeln
|
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NegativThe stone I received is not this color
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Positiv
My jeweller checked the stone smaller than the information that provided on the website. 4.55ct only and the size only 9.8mm x 11mm. The stone colour lighter than the pictures and video provided. The stone checked is real tanzanite.
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Positiv
Paid and shipped - no feedback left after 100 days
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Positiv
good seller
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Positiv
Paid and shipped - no feedback left after 100 days
