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Hydroxynatropyrochlore

Collectors Summary

Crystal System kubisch, Fd3m

Chemism

Chemical formula

(Na,Сa,Ce)2Nb2O6(OH)

Chemical composition

Cerium, Natrium, Niob, Sauerstoff, Wasserstoff

Unit weight: 461.9225912 u; Number of atoms in the formula: 12

Info

Empirical formula:

(Na,Сa,Ce)2Nb2O6(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.22

1

8.33

1.0079470

1.0079470

Oxygen

O

24.25

7

58.33

15.9994300

111.9960100

Sodium

Na

4.98

1

8.33

22.9897702

22.9897702

Niobium

Nb

40.23

2

16.67

92.9063820

185.8127640

Cerium

Ce

30.33

1

8.33

140.1161000

140.1161000

Strunz 9th edition incl. updates

4.DH.15

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
H: Mit großen (± mittelgroßen) [Kationen]; Lagen kantenverknüpfter Oktaeder
15:Pyrochlor-Gruppe

IMA status

anerkannt CNMNC Newsletter 40, Oktober 2017

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Pyrochlore supergroup  ⇒ Pyrochlore group

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

10.3276(5)

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Volume (ų)

1101.535

Crystal structure

Pyrochlor-Supergruppe; Struktur bestimmt

X-Ray Powder Diffraction

5.96(47),
3.110(30),
2.580(100),
2.368(19),
1.987(6),
1.826(25),
1.746(3),
1.556(14)

XRD chart Hydroxynatropyrochlore

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

(Co-)Type locality

(Co-)Type locality

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor/Phoscorite-Carbonatite Pipe

Type material

Typisches Material ist in den Sammlungen des Mineralogischen Museums, der Staatlichen Universität Sankt-Petersburg, der Universität Emb. 7/9, St. Petersburg 199034, Russland, Katalognummer 1/19679

Preface

Author (Name, Year)

Gregory Y. Ivanyuk, Victor N. Yakovenchuk, Taras L. Panikorovskii, Nataliya Konoplyova, Yakov A. Pakhomovsky, Ayya V. Bazai, Vladimir N. Bocharov und Sergey V. Krivovichev (2017)

References

Ivanyuk, G.Y., Yakovenchuk, V.N., Panikorovskii, T.L., Konoplyova, N., Pakhomovsky, Y.A., Bazai, A.V., Bocharov, V.N. und Kriwowitschew, S.W. (2017) Hydroxynatropyrochlore, IMA 2017-074. CNMNC Newsletter Nr. 40, Dezember 2017, Seite 1580; Mineralogical Record, 81, 1577-1581.

IMA group assignments

 
A2-mD2X6-wZ1-n
 
 

 
 
A2Nb2(O,OH)6Z
kubisch
Fd3m

 
 
 
☐Nb2(O,OH)6Cs1−x {x ∼ 0.20}
kubisch
Fd3m

 
 
 
(Ca,Na)2(Nb,Ti)2O6F
kubisch
Fd3m

 
 
 
(☐,Na,Ce,Ca)2(Nb,Ti)2O6F
 
 

 
 
 
(Na,Pb,Ca,REE,U)2Nb2O6F
kubisch
Fd3m

 
 
 
(Sr,☐)2Nb2(O,OH)6F
 
 

 
 
 
2Nb2O4(OH)2(H2O)
kubisch
Fd3m

 
 
 
(H2O,☐)2Nb2(O,OH)6(H2O)
kubisch
Fd3m

 
 
 
(Ca,Na,U,☐)2(Nb,Ti)2O6(OH)
kubisch
Fd3m

 
 
 
(☐,Ce,Ba)2(Nb,Ti)2O6(OH,F)
kubisch
Fd3m

 
 
 
(Mn,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH)
kubisch
Fd3m

 
 
 
(Na,Сa,Ce)2Nb2O6(OH)
kubisch
Fd3m

 
 
 
(Pb1.50.5)Nb2O6(OH)
kubisch
Fd3m

 
 
 
(Pb,☐)Nb2 O6(☐,O)
 
 

 
 
 
Ca2Nb2O6O
 
 

 
 
 
(Na,Ca,U)2Nb2O6(O,OH)
 
 

 
 
 
Pb2Nb2O6O
 
 

 
 
 
(Y,☐) 2Nb2O6O
 
 

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Actuality: 26. Feb 2024 - 04:19:58

Other languages

German

Hydroxynatropyrochlor

English

Hydroxynatropyrochlore

CNMNC (IMA)-Number

IMA 2017-074

CNMNC symbol

Symbol

Hnpcl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) K3qEpzo5FUeSRDBgYVRzwA
GUID (Global unique identifier) A7847A2B-393A-4715-9244-3060615473C0
Database ID 8450