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1.85 Carats Rarest Natural Afghanite Gemstone
- 存货单位
- 尺寸(毫米)
- 10.000 x 8.000 x 4.000mm
- 重量 (cts)
- 1.850
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
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
- 存货单位
- 尺寸(毫米)
- 10.000 x 8.000 x 4.000 mm
- 重量 (cts)
- 1.850
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
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
运输商 | 运送至:国家 | 运送到世界其他地区 |
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Standard Shipping - Tracked | $12.00 / :几天天 | $12.00 / :几天天 |
:国家
Standard Shipping - Tracked 对包含 2 或更多商品的订单折扣为 $7.00
世界其他地区
Standard Shipping - Tracked 对包含 2 或更多商品的订单折扣为 $7.00
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DHL | $22.00 / :几天天 | $22.00 / :几天天 |
:国家
DHL 对包含 2 或更多商品的订单折扣为 $22.00
世界其他地区
DHL 对包含 2 或更多商品的订单折扣为 $22.00
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Express Shipping | $22.00 / :几天天 | $22.00 / :几天天 |
:国家
Express Shipping 对包含 2 或更多商品的订单折扣为 $22.00
世界其他地区
Express Shipping 对包含 2 或更多商品的订单折扣为 $22.00
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积极的
Super great seller. Exactly as pictured. Super fast shipping and very kind and easy to work with! Super recommended seller.
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消极的
Never arrived. forwarded one of thier packages sent in error at my own cost and they said they would resolve but did not. It has been over 3 months with many messages, but they have not resolved the problem. Time for a Paypal dispute.
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消极的
Never arrived. forwarded one of thier packages sent in error at my own cost and they said they would resolve but did not. It has been over 3 months with many messages, but they have not resolved the problem. Time for a Paypal dispute.
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积极的
Fantastic stone, pictures and description are entirely accurate.