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Rarest 4.05 Carat Top Quality Loupe Clean Bastnasite Gemstone
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Einzelheiten
- Artikelnummer
- Abmessungen (mm)
- 11.58 x 6.11 x 4.5mm
- Gewicht (cts)
- 4.05
- Treatment
- No Treatment
- Type
- Faceted
- Farben
-
Beschreibung
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).
Versand
| Anbieter | Ziel | Kosten |
|---|---|---|
| Standard Shipping - Tracked Standard |
Rest der Welt
21
|
erster Punkt
pro zusätzlichem Artikel
Versandkosten begrenzt auf
|
| FedEx |
Rest der Welt
4
|
erster Punkt
pro zusätzlichem Artikel
Versandkosten begrenzt auf
|
| Standard Shipping - Tracked Standard |
Thailand
7
|
erster Punkt
pro zusätzlichem Artikel
Versandkosten begrenzt auf
|
| FedEx |
Thailand
2
|
erster Punkt
pro zusätzlichem Artikel
Versandkosten begrenzt auf
|
Einzelheiten
- Artikelnummer
- Abmessungen (mm)
- 11.58 x 6.11 x 4.5 mm
- Gewicht (cts)
- 4.05
- Treatment
- No Treatment
- Type
- Faceted
- Farben
-
Beschreibung
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).
Versand
| Anbieter | Ziel | Kosten |
|---|---|---|
| Standard Shipping - Tracked Standard |
Rest der Welt
21
|
erster Punkt
pro zusätzlichem Artikel
Versandkosten begrenzt auf
|
| FedEx |
Rest der Welt
4
|
erster Punkt
pro zusätzlichem Artikel
Versandkosten begrenzt auf
|
| Standard Shipping - Tracked Standard |
Thailand
7
|
erster Punkt
pro zusätzlichem Artikel
Versandkosten begrenzt auf
|
| FedEx |
Thailand
2
|
erster Punkt
pro zusätzlichem Artikel
Versandkosten begrenzt auf
|
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PositivBeautiful stones, very happy with my purchase.
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Positiv
superb stone. everything is perfect*****. thank you !!
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Positiv
Pretty as a flower! Thank you!
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Great seller! 👍👍
Prüfung
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Versanddetails
Kosten:
Transit:
21 über Standard Shipping - Tracked
Begrenzt auf:
Schiffe von:
Thailand
Zahlungsmöglichkeiten
Überblick
Auflistungstyp :
Standard
Produkt ID :
3162918
Beginnt : 2nd April 2026 05:29 pm PDT
* Alle Preise sind in USD