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当前出价
20
出价
关闭
03/09/2022 02:49 am
20
593
9
Extremely Rare 5.75 Ct Perfect Round Bastnasite Gemstone~ Zagi Mine
20
593
9
- 存货单位
- 尺寸（毫米）
- 9.570 x 9.570 x 6.450mm
- 重量 (cts)
- 5.750
- Shape
- Round
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
Bastnäsite-(Ce), which has the chemical formula (Ce,RE)(CO3)(F,OH), and parisite-(Ce), or Ca(Ce,RE) 2(CO3) 3(F,OH)2, are cerium-dominant rare-earth (RE) carbonates. Although they very rarely form as crystals large and clean enough for faceting, one locality in Pakistan (Zagi or Zegi Mountain) has produced bastnäsite-(Ce) that has been faceted into stones up to 20 ct (Johnson, 1999; Obodda and Leavens, 2004). Gem-quality parisite-(Ce) has been reported very rarely, usually associated with Colombian emeralds such as those from Muzo (Henn et al., 1992). In fact, the mineral is named in honor of J. I. Paris, one of the first managers of the Muzo mine (Palache et al., 1963). This note reports on bastnäsite- (Ce) and parisite-(Ce) from Malawi’s Mt. Malosa, where these minerals occur as well-formed crystals that locally may contain clear, gem-quality portions (e.g., figure 1). One of the authors (AG) visited the deposit in 2002 for research purposes, and has documented the geology and mineralogy of the area in other publications (e.g., Guastoni et al., 2007, 2009).
- 存货单位
- 尺寸（毫米）
- 9.570 x 9.570 x 6.450 mm
- 重量 (cts)
- 5.750
- Shape
- Round
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
Bastnäsite-(Ce), which has the chemical formula (Ce,RE)(CO3)(F,OH), and parisite-(Ce), or Ca(Ce,RE) 2(CO3) 3(F,OH)2, are cerium-dominant rare-earth (RE) carbonates. Although they very rarely form as crystals large and clean enough for faceting, one locality in Pakistan (Zagi or Zegi Mountain) has produced bastnäsite-(Ce) that has been faceted into stones up to 20 ct (Johnson, 1999; Obodda and Leavens, 2004). Gem-quality parisite-(Ce) has been reported very rarely, usually associated with Colombian emeralds such as those from Muzo (Henn et al., 1992). In fact, the mineral is named in honor of J. I. Paris, one of the first managers of the Muzo mine (Palache et al., 1963). This note reports on bastnäsite- (Ce) and parisite-(Ce) from Malawi’s Mt. Malosa, where these minerals occur as well-formed crystals that locally may contain clear, gem-quality portions (e.g., figure 1). One of the authors (AG) visited the deposit in 2002 for research purposes, and has documented the geology and mineralogy of the area in other publications (e.g., Guastoni et al., 2007, 2009).
| 运输商 | 运送至：国家 | 运送到世界其他地区 |
|---|---|---|
| Standard Shipping - Tracked | $20.00 / ：几天天 | $25.00 / ：几天天 |
|
：国家
Standard Shipping - Tracked 对包含 2 或更多商品的订单折扣为 $20.00
世界其他地区
Standard Shipping - Tracked 对包含 2 或更多商品的订单折扣为 $35.00
|
||
| FedEx | $45.00 / ：几天天 | $45.00 / ：几天天 |
|
：国家
FedEx 对包含 2 或更多商品的订单折扣为 $50.00
世界其他地区
FedEx 对于 1.00 或以上的订单折扣为 $50.00
|
||
| DHL | $60.00 / ：几天天 | $60.00 / ：几天天 |
|
：国家
DHL 对包含 2 或更多商品的订单折扣为 $60.00
世界其他地区
DHL 对包含 2 或更多商品的订单折扣为 $60.00
|
||
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：城市，国家
已验证
：总反馈
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积极的Beautiful gem better in person
-
积极的
An absolutely beautiful stone! As an avid fluorite collector, this is a stunning addition to my collection! Shipped quickly for an amazing price from an excellent seller. Thank you!
-
积极的
Great quality item. Fast shipping.
-
积极的
Stunning! Quick turnaround too
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The Verified Seller has provided accurate and complete information for this item including weight, dimensions, and treatment.
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送货细节
船运:
$45.00 :通过 FedEx 计算天数
发货自:
Thailand
付款方式
概述
列表类型 :
Standard
产品编号 :
1742469
预计建议零售价 :
$1,600.00
起拍价 : $1
开始 : 20th August 2022 07:49 pm AEST
结束 : 3rd September 2022 07:49 pm AEST
* 所有价格均以：货币为单位
