Opals
Gemstones
Jewelry
Coins
您尚未參與本次拍賣。
預留未滿足
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
8觀看
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 |
|
|
|
|
| FedEx |
|
|
|
|
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 |
|
|
|
|
店鋪
最近的回饋
-
積極的Received, thank you
-
積極的
Very nice stone and very good cut. Thank you :)
-
積極的
Nice gemstone. Thank you
為什麼用戶出價高於自己？
自動出價圖標
自動出價
出價時，這是一個人願意為產品出價的最高金額。然後，我們的系統將自動代表投標人出價，逐步將出價提高到最高價，以保持其最高出價者的地位。
當出現「自動出價」圖示時，表示我們的系統正在根據投標者的最高出價主動為其出價。這可能看起來好像出價者出價高於自己，但這只是系統更新出價以反映出價者最高限額的結果。
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