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Liebermannite

Collectors Summary

Crystal System tetragonal, I4/m

Additional information / Summary

Mars Mineral

Chemism

Chemical formula

KAlSi3O8

Chemical composition

Aluminium, Silicium, Kalium, Sauerstoff

Unit weight: 278.3318782 u; Number of atoms in the formula: 13

Info

Empirical formula:

KAlSi3O8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

45.99

8

61.54

15.9994300

127.9954400
Aluminium

Al

9.69

1

7.69

26.9815382

26.9815382
Silicon

Si

30.27

3

23.08

28.0855300

84.2565900
Potassium

K

14.05

1

7.69

39.0983100

39.0983100

Strunz 9th edition incl. updates

9.FA.70

9: Silikate (Germanate)
F: Gerüstsilikate (Tektosilikate) ohne zeolithisches H2O
A: Gerüstsilikate (Tektosilicates) ohne weitere [Anionen]
70:

Lapis Classification

VIII/J.07-076

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
7: Ohne tetraederfremde Anionen; Feldspat-Gruppe

IMA status

anerkannt - CNMNC Newsletter No. 20, June 2014, page 551

Mineral status

anerkanntes Mineral

Crystallography

Crystal System

tetragonal

Class (H-M)

4/m

Space Group number

87

Space Group

I4/m

Cell parameters a (Å)

9.14(4)

Cell parameters b (Å)

-

Cell parameters c (Å)

2.74(2)

Cell parameters a/b or c/a

0.3

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Volume (ų)

228.899

Crystal structure

K Analog von Lingunit, Struktur bestimmt

X-Ray Powder Diffraction

6.463(53), 2.890(100), 2.036(87), 1.859(16), 1.442(27), 1.368(13), 1.317(16), 1.266(15)
XRD chart Liebermannite

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

(Co-)Type locality

(Co-)Type locality

Nigeria/Katsina/Zagami/Zagami Meteorit

Type material

Smithsonian Institution’s National Museum of Natural History, Washington DC, USA

Collection number of type material

USNM 7619

Preface

Author (Name, Year)

Chi Ma, Oliver Tschauner und John R. Beckett (2014)

References

Ma, C., Tschauner, O. and Beckett, J.R. (2014) Liebermannite, IMA 2013-128. CNMNC Newsletter No. 20, June 2014, page 551; Mineralogical Magazine, 78, 549-558.

Other languages

German

Liebermannit

English

Liebermannite

Simplified Chinese

利伯曼石

CNMNC (IMA)-Number

IMA 2013-128

CNMNC symbol

Symbol

Lbm

Locations with GPS information

IDs

GUSID (Global unique identifier short form) PE4JbggIAUmnFi_c4cFRuw
GUID (Global unique identifier) 6E094E3C-0808-4901-A716-2FDCE1C151BB
Database ID 7742