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Lingunite

Collectors Summary

Crystal System tetragonal, I4/m

Chemism

Chemical formula

(Na,Ca)AlSi3O8

Additional chem. information

ehemals unbekanntes tetragonales Analog zu Albit, Polymorph von: Anorthoklas, Kumdykolit

Chemical composition

Aluminium, Calcium, Natrium, Silicium, Sauerstoff

Unit weight: 266.49549585 u; Number of atoms in the formula: 13

Info

Empirical formula:

(Na0.75Ca0.25)AlSi3O8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

48.03

8

61.54

15.9994300

127.9954400

Sodium

Na

6.47

0.75

5.77

22.9897702

17.2423277

Aluminium

Al

10.12

1

7.69

26.9815382

26.9815382

Silicon

Si

31.62

3

23.08

28.0855300

84.2565900

Calcium

Ca

3.76

0.25

1.92

40.0784000

10.0196000

Analysis wt%

SiO2 : 66.82, Al2O3 : 18.90, CaO : 6.23, Na2O : 8.04 (Ref: berechnet)

Strunz 9th edition incl. updates

9.FA.35

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

Lapis Classification

VIII/J.07-077

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

Classification by Hölzel

9.FC.400

9: SILICATES
F: Tektosilicates
C: Feldspar-Group

IMA status

anerkannt 2004

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Feldspar group

Crystallography

Crystal System

tetragonal

Class (H-M)

4/m

Space Group number

87

Space Group

I4/m

Cell parameters a (Å)

9.263

Cell parameters b (Å)

-

Cell parameters c (Å)

2.706

Cell parameters a/b or c/a

0.292

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Volumne (ų)

232.183

X-Ray Powder Diffraction

6.55(66), 4.63(60), 2.931(100), 2.265(35), 2.032(85), 1.737(37), 1.543(33), 1.450(42)

XRD chart Lingunite

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

Preface

Author (Name, Year)

El Goresy

References

Xi Liu (2006) Phasen-Abhängigkeiten im KAlSi3O8–NaAlSi3O8 System unter Hochtemperatur, -Druck Bedingungen und ihrer Einflüsse auf die Gesteinsumwandlung von Lingunit

Earth and Planetary Sciences Letters Volume 246, Issues 3-4, Pages 317-325

Science 287 (2000), 1633.

IMA group assignments


 
 
 
 
 

 
 
 
(Na,K)AlSi3O8
triklin
C1

 
 
 
(NH4)AlSi3O8·0.5 H2O
monoklin
P21, P21/m

 
 
 
BaAl2Si2O8
monoklin
I2/c

 
 
 
(K,Ba)Al(Si,Al)3O8
monoklin
C2/m

 
 
 
KAlSi3O8
triklin
C1

 
 
 
KAlSi3O8
monoklin
C2/m

 
 
 
(Rb,K)[AlSi3O8]
triklin
P1

 
 
 
(K,Na)(Si,Al)4O8
monoklin
C2/m

 
 
BaNa2Al4Si4O16
orthorhombisch
Iba2

 
 
CaAl2Si2O8
hexagonal
P6/mmm

 
 
K[(Al,Zn)2(As,Si)2O8]
monoklin
I2/c

 
 
KAlSi3O8
hexagonal
P6/mmm

 
 
(Na,Ca)AlSi3O8
tetragonal
I4/m

 
 
BaAl2Si2O8
monoklin
P21/a

 
 
 
 
 

 
 
 
NaAlSi3O8
triklin
C1

 
 
 
(Na,Ca)(Si,Al)4O8
triklin
P1

 
 
 
CaAl2Si2O8
triklin
P1

 
 
 
(Ca,Na)(Si,Al)4O8
triklin
I1

 
 
 
(Ca,Na)(Si,Al)4O8
triklin
C1

 
 
 
(Na,Ca)(Si,Al)4O8
triklin
C1

 
 
NaBSi3O8
triklin
C1

 
 
(Sr,Ca)Al2Si2O8
monoklin
P21/a

 
 
SrNa2Al4Si4O16
orthorhombisch
Iba2

 
 
CaAl2Si2O8
orthorhombisch
P21212

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Actuality: 01. Dec 2022 - 07:30:25

Other languages

German

Lingunit

English

Lingunite

Alternative Name

NaAlSi3O8-hollandite

Silicate Hollandite

Unnamed (Tetragonal analogue of Albite)

CNMNC (IMA)-Number

IMA 2004-054

CNMNC symbol

Symbol

Lgn

Locations with GPS information