Opals
Gemstones
Jewelry
Coins
您尚未参与本次拍卖。
预留未满足
当前出价
17
出价
11/12/2025 04:29 pm
Rarest 4.05 Carat Top Quality Loupe Clean Bastnasite Gemstone
17 bids
2869 views
8观看
细节
- 存货单位
- 尺寸（毫米）
- 11.58 x 6.11 x 4.5mm
- 重量 (cts)
- 4.05
- Treatment
- No Treatment
- Type
- Faceted
- 颜色
-
描述
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).
船运
| 运输商 | 运送至：国家 | 运送到世界其他地区 | 联合运输（ 泰国 ） | 联合运输（世界其他地区） |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
细节
- 存货单位
- 尺寸（毫米）
- 11.58 x 6.11 x 4.5 mm
- 重量 (cts)
- 4.05
- Treatment
- No Treatment
- Type
- Faceted
- 颜色
-
描述
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).
船运
| 运输商 | 运送至：国家 | 运送到世界其他地区 | 联合运输（ 泰国 ） | 联合运输（世界其他地区） |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
店铺
最近的反馈
-
积极的Received, thank you
-
积极的
Very nice stone and very good cut. Thank you :)
-
积极的
Nice gemstone. Thank you
为什么用户出价高于自己？
自动出价图标
自动出价
当有人出价时，这是某人愿意为产品出价的最高金额。然后我们的系统将自动代表竞标者出价，逐步提高出价直至最高价，以保持其最高出价者的地位。
当出现“自动出价”图标时，表示我们的系统正在根据出价者的最高出价为其出价。这可能看起来像是出价者在出价高于自己，但这只是系统更新出价以反映出价者的最高限额的结果。
审计
Gemstone Sheriff计划允许我们的会员对任何产品申请审核，审核由独立的Gemologist人员完成，负责评估产品描述和图片的准确性。
送货细节
成本:
过境:
21通过Standard Shipping - Tracked计数天数
发货自:
泰国
付款方式
概述
列表类型 :
Standard
产品编号 :
1412448
预计建议零售价 :
起拍价 :
开始 : 27th November 2025 04:29 pm PST
结束 : 11th December 2025 04:29 pm PST
* 所有价格均以：货币为单位