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Rare 2.86Ct Vivid Medium Blue Colour Afganite with Strong High Fluorescence
- SKU
- Dimenzije (mm)
- 14.300 x 7.500 x 5.200mm
- Težina (cts)
- 2.860
- Treatment
- No Treatment
- Shape
- Pear
- Tip
- Faceted
- Clarity
- VS
- Boje
-
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.
- SKU
- Dimenzije (mm)
- 14.300 x 7.500 x 5.200 mm
- Težina (cts)
- 2.860
- Treatment
- No Treatment
- Shape
- Pear
- Tip
- Faceted
- Clarity
- VS
- Boje
-
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.
| Pružatelj usluge dostave | Dostava Thailand | Dostava u ostatak svijeta |
|---|---|---|
| Standard Shipping - Tracked | $10.00 / 7 | $15.00 / 21 |
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Thailand
Standard Shipping - Tracked je snižen na $15.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Standard Shipping - Tracked je snižen na $20.00 na narudžbe s 2 ili više artikala
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| FedEx | $35.00 / 2 | $35.00 / 4 |
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Ostatak svijeta
FedEx je snižen na $35.00 na narudžbe s 2 ili više artikala
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| Express Shipping | $35.00 / 10 | $60.00 / 7 |
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Ostatak svijeta
Express Shipping je snižen na $60.00 na narudžbe s 2 ili više artikala
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Pozitivanwonderful stone!
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Pozitivan
Great quality and price. Sent additional images and description. Quick shipping time.
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Pozitivan
Thanks
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Pozitivan
Very good seller, a beautiful stone, I highly recommend!!!
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Pozitivan
AAAA seller
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The Verified Seller responsible for this item has diligently provided us with accurate and comprehensive information, encompassing crucial details such as weight, dimensions, and treatment. It is important to reiterate our commitment to upholding the highest standards of integrity and transparency in the gemstone industry. As part of our policy, we strictly permit the sale of exclusively natural gemstones that have been sourced directly from the Earth. However, in the event that a gemstone has undergone any form of treatment, it is mandatory for the seller to provide full disclosure regarding the treatment process. Furthermore, we would like to emphasize that man-made gemstones, including simulants and imitations, are strictly prohibited on our platform. We prioritize the promotion of authentic, natural gemstones to ensure a genuine and trustworthy marketplace for our valued customers. Should you have any further inquiries or require additional assistance, please do not hesitate to reach out. We are here to assist you and provide a seamless experience on Gem Rock Auctions.
