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Xenophyllite (Xenophyllit)

Additional Functions

Collectors Summary

Crystal System triklin, P1, P1

Chemism

Chemical formula

Na4Fe7(PO4)6

Chemical composition

Eisen, Natrium, Phosphor, Sauerstoff

Unit weight: 1052.704368 u; Number of atoms in the formula: 41

Info

Empirical formula:

Na4Fe7(PO4)6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

36.48

24

58.54

15.9994300

383.9863200
Sodium

Na

8.74

4

9.76

22.9897702

91.9590808
Phosphorus

P

17.65

6

14.63

30.9737612

185.8425672
Iron

Fe

37.13

7

17.07

55.8452000

390.9164000

Analysis wt%

P2O5 : 40.75, FeO : 47.77, Na2O : 11.87 (Ref: berechnet)

Strunz 9th edition incl. updates

8.AC.50

8: Phosphate, Arsenate, Vanadate
A: Phosphate, etc., ohne weitere Anionen, ohne H2O
C: Mit mittelgroßen und großen [Kationen]
50:Fillowit-Gruppe

Lapis Classification

VII/A.08-002

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
A: Wasserfreie Phosphate [PO4] 3-, ohne fremde Anionen
8: Mittelgroße und große Kationen: Mg-Mn-Fe-Cu-Zn und Ca-Na

Classification by Hölzel

8.AC.370

8: PHOSPHATES ARSENATES VANADATES
A: Phosphates (-anions -water)
C: Phosphates, C medium + large
3: Whitlockite-Group

IMA status

anerkannt 04/2006

Mineral status

anerkanntes Mineral

Crystallography

Crystal System

triklin

Class (H-M)

1, 1

Space Group number

1, 2

Space Group

P1, P1

Cell parameters a (Å)

9.643

Cell parameters b (Å)

9.633

Cell parameters c (Å)

17.645

Cell parameters a/b or c/a

1.001

Cell parameters c/b

1.832

Cell parameters α

88.27

Cell parameters β

88.17

Cell parameters γ

64.83

Z

2

Volumne (ų)

1482.426

X-Ray Powder Diffraction

5.12(2), 3.034(10), 2.888(2), 2.715(8), 2.585(3), 2.405(2), 1.870(2), 1.769(2)
XRD chart Xenophyllite

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

Physical Properties

Density (g/cm³)

2.358 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Ukraine/Saporischschja, Oblast/Augustinovka Meteorit

Paragenesis of type material

Sarkopsid, Schreibersit, Chromit, Pentlandit

Preface

Author (Name, Year)

Sergey N. Britvin, Sergey V. Krivovichev, Edita V. Obolonskaya, Natalia S. Vlasenko, Vladimir N. Bocharov, Vera V. Bryukhanova (2020)

References

Sergey N. Britvin, Sergey V. Krivovichev, Edita V. Obolonskaya, Natalia S. Vlasenko, Vladimir N. Bocharov, Vera V. Bryukhanova: Xenophyllite, Na4Fe7(PO4)6, an Exotic Meteoritic Phosphate: New Mineral Description, Na-ions Mobility and Electrochemical Implications. Minerals Vol. 10, Nr. 4 (2020) Art.-Nr. 300. (Open Access)

Other languages

German

Xenophyllit

Spanish

Xenophyllita

English

Xenophyllite

Russian

Ксенофиллит

CNMNC (IMA)-Number

IMA 2006-006

CNMNC symbol

Symbol

Xp