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當前出價
17
出價
11/12/2025 04:29 pm
Rarest 4.05 Carat Top Quality Loupe Clean Bastnasite Gemstone
17 bids
2877 views
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細節
- 存貨單位
- 尺寸(毫米)
- 11.58 x 6.11 x 4.5mm
- 重量 (cts)
- 4.05
- Treatment
- No Treatment
- Type
- Faceted
- 顏色
-
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).
船運
| 運輸商 | 運送至:國家 | 運送到世界其他地區 | 聯合運輸( 泰國 ) | 聯合運輸(世界其他地區) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
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| FedEx |
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細節
- 存貨單位
- 尺寸(毫米)
- 11.58 x 6.11 x 4.5 mm
- 重量 (cts)
- 4.05
- Treatment
- No Treatment
- Type
- Faceted
- 顏色
-
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).
船運
| 運輸商 | 運送至:國家 | 運送到世界其他地區 | 聯合運輸( 泰國 ) | 聯合運輸(世界其他地區) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
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審計
Gemstone Sheriff計畫允許我們的會員要求對任何產品進行審核,該審核由獨立的Gemologist人員完成,該資格人員評估商品描述和圖片的準確性。
送貨細節
成本:
過境:
21透過Standard Shipping - Tracked計算天數
發貨自:
泰國
付款方式
概述
列表類型 :
Standard
產品編號 :
1412448
預計建議零售價 :
起拍價 :
開始 : 27th November 2025 04:29 pm PST
結束 : 11th December 2025 04:29 pm PST
* 所有價格均以:貨幣為單位