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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°

Volumne (ų)

1101.535

Kristall 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

Other languages

German

Hydroxynatropyrochlor

English

Hydroxynatropyrochlore

CNMNC (IMA)-Number

IMA 2017-074

CNMNC symbol

Symbol

Hnpcl

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

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