Opals
Gemstones
Jewelry
Coins
Non hai fatto offerte per questa asta.
Rare 2.86Ct Vivid Medium Blue Colour Afganite with Strong High Fluorescence
- SKU
- Dimensioni (mm)
- 14.3 x 7.5 x 5.2mm
- Peso (cts)
- 2.86
- Treatment
- No Treatment
- Shape
- Pear
- Type
- Faceted
- Clarity
- VS
- Colori
-
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.
| Fornitore di spedizioni | Spedizione a Thailandia | Spedizione nel resto del mondo | Spedizione combinata ( Thailandia ) | Spedizione combinata (resto del mondo) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
Non disponibile |
|
| Express Shipping |
|
|
Non disponibile |
|
- SKU
- Dimensioni (mm)
- 14.3 x 7.5 x 5.2 mm
- Peso (cts)
- 2.86
- Treatment
- No Treatment
- Shape
- Pear
- Type
- Faceted
- Clarity
- VS
- Colori
-
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.
| Fornitore di spedizioni | Spedizione a Thailandia | Spedizione nel resto del mondo | Spedizione combinata ( Thailandia ) | Spedizione combinata (resto del mondo) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
Non disponibile |
|
| Express Shipping |
|
|
Non disponibile |
|
A Team from Kenya Working Hard to get you the Highest Quality Gems.
-
PositivoHaven't had it appraised, but so far so good! Seller was communicative when messaged, and I received the gem.
Perché gli utenti superano se stessi?
Quando viene fatta un'offerta, questo è l'importo massimo che una persona è disposta a offrire per il prodotto. Il nostro sistema farà quindi automaticamente un'offerta per conto dell'offerente, aumentando gradualmente l'offerta fino al massimo per mantenere la sua posizione di miglior offerente.
Quando c'è un'icona che indica "Offerta automatica", significa che il nostro sistema sta attivamente piazzando offerte per l'offerente in base alla sua offerta massima. Questo potrebbe sembrare come se gli offerenti stessero superando se stessi, ma è semplicemente il risultato del sistema che aggiorna l'offerta per riflettere il limite massimo degli offerenti.
Verifica
-
Descrizione Preciso
-
Immagini accurate
Comments
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.
