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RRP estimé
Rarest 4.05 Carat Top Quality Loupe Clean Bastnasite Gemstone
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Détails
- UGS
- Dimensions (mm)
- 11.58 x 6.11 x 4.5mm
- Poids (cts)
- 4.05
- Treatment
- No Treatment
- Type
- Faceted
- Couleurs
-
Description
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).
Expédition
| Fournisseur | Destination | Coût |
|---|---|---|
| Standard Shipping - Tracked Défaut |
Reste du monde
21
|
premier article
par article supplémentaire
frais de port plafonnés à
|
| FedEx |
Reste du monde
4
|
premier article
par article supplémentaire
frais de port plafonnés à
|
| Standard Shipping - Tracked Défaut |
Thaïlande
7
|
premier article
par article supplémentaire
frais de port plafonnés à
|
| FedEx |
Thaïlande
2
|
premier article
par article supplémentaire
frais de port plafonnés à
|
Détails
- UGS
- Dimensions (mm)
- 11.58 x 6.11 x 4.5 mm
- Poids (cts)
- 4.05
- Treatment
- No Treatment
- Type
- Faceted
- Couleurs
-
Description
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).
Expédition
| Fournisseur | Destination | Coût |
|---|---|---|
| Standard Shipping - Tracked Défaut |
Reste du monde
21
|
premier article
par article supplémentaire
frais de port plafonnés à
|
| FedEx |
Reste du monde
4
|
premier article
par article supplémentaire
frais de port plafonnés à
|
| Standard Shipping - Tracked Défaut |
Thaïlande
7
|
premier article
par article supplémentaire
frais de port plafonnés à
|
| FedEx |
Thaïlande
2
|
premier article
par article supplémentaire
frais de port plafonnés à
|
Magasin
Commentaires récents
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PositifBeautiful stones, very happy with my purchase.
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Positif
superb stone. everything is perfect*****. thank you !!
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Positif
Pretty as a flower! Thank you!
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Positif
Great seller! 👍👍
Audit
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Les détails d'expédition
Frais:
Transit:
21 les jours via Standard Shipping - Tracked
Plafonné à:
Expédié depuis:
Thaïlande
Options de paiement
Aperçu
Type d'inscription :
Standard
Identifiant du produit :
3162918
Départs : 2nd April 2026 05:29 pm PDT
* Tous les prix sont en USD