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Cryolithionite

Pictures (4 Images total)

Kryolithionit und Kryolith (braun)
Views (File:
1287251714
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Kryolithionit und Kryolith (braun)
Bildbreite: 80 mm; Fundort: Kryolithlagerstätte, Ivigtut, Kitaa, Kommuneqarfik Sermersooq, Grönland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Grönland/Kommuneqarfik Sermersooq/Ivittuut (Ivigtut)/Kryolithlagerstätte (Cryolite deposit)
Mineral: Cryolithionite
Image: 1287251714
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Kryolithionit und Kryolith (braun)

Bildbreite: 80 mm; Fundort: Kryolithlagerstätte, Ivigtut, Kitaa, Kommuneqarfik Sermersooq, Grönland
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2010-10-16
Locality: Kryolithlagerstätte (Cryolite deposit) / Ivittuut (Ivigtut) / Kommuneqarfik Sermersooq / Grönland
Kryolithionit mit Kryolith (gelblich)
Views (File:
1287251753
): 1948
Kryolithionit mit Kryolith (gelblich)
Größe: 45x20x17 mm; Fundort: Kryolithlagerstätte, Ivigtut, Kitaa, Kommuneqarfik Sermersooq, Grönland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Grönland/Kommuneqarfik Sermersooq/Ivittuut (Ivigtut)/Kryolithlagerstätte (Cryolite deposit)
Mineral: Cryolithionite
Image: 1287251753
License: Usage for Mineralienatlas project only
Kryolithionit mit Kryolith (gelblich)

Größe: 45x20x17 mm; Fundort: Kryolithlagerstätte, Ivigtut, Kitaa, Kommuneqarfik Sermersooq, Grönland
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2010-10-16
Locality: Kryolithlagerstätte (Cryolite deposit) / Ivittuut (Ivigtut) / Kommuneqarfik Sermersooq / Grönland
Kryolithionit
Views (File:
1598343547
): 403
Kryolithionit
Grönland/Kommuneqarfik Sermersooq/Ivittuut (Ivigtut)/Kryolithlagerstätte (Cryolite deposit). Bildbreite 1,3 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Grönland/Kommuneqarfik Sermersooq/Ivittuut (Ivigtut)/Kryolithlagerstätte (Cryolite deposit)
Mineral: Cryolithionite
Image: 1598343547
License: Usage for Mineralienatlas project only
Kryolithionit

Grönland/Kommuneqarfik Sermersooq/Ivittuut (Ivigtut)/Kryolithlagerstätte (Cryolite deposit). Bildbreite 1,3 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-08-25
Locality: Kryolithlagerstätte (Cryolite deposit) / Ivittuut (Ivigtut) / Kommuneqarfik Sermersooq / Grönland
Kryolithionit, Kryolith
Views (File:
1699713668
): 41
Kryolithionit, Kryolith
Etwa 50 mm x 47 mm große braune Kryolithstufe mit weißem Kryolithionit von Ivigtut auf Grönland.
Copyright: Klaus Schäfer; Contribution: Klaus Schäfer
Collection: Klaus Schäfer, Collection number: GL-KryoL-5-1-1
Location: Grönland/Kommuneqarfik Sermersooq/Ivittuut (Ivigtut)/Kryolithlagerstätte (Cryolite deposit)
Mineral: Cryolithionite
Image: 1699713668
License: Usage for Mineralienatlas project only
Kryolithionit, Kryolith (SNr: GL-KryoL-5-1-1)

Etwa 50 mm x 47 mm große braune Kryolithstufe mit weißem Kryolithionit von Ivigtut auf Grönland.
Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2023-11-11
Locality: Kryolithlagerstätte (Cryolite deposit) / Ivittuut (Ivigtut) / Kommuneqarfik Sermersooq / Grönland

Collectors Summary

Color farblos, weiß
Streak color weiß
Hardness (Mohs) 2.50 - 3.00
Solubility +++ H2SO4, + warme H2O
Crystal System kubisch, Ia3d

Chemism

Chemical formula

{Na3}[Al2](Li3)F12

Chemical composition

Aluminium, Lithium, Natrium, Fluor

Unit weight: 371.736826 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Na3}[Al2](Li3)F12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Lithium

Li

5.60

3

15.00

6.9412000

20.8236000
Fluorine

F

61.33

12

60.00

18.9984033

227.9808390
Sodium

Na

18.55

3

15.00

22.9897702

68.9693106
Aluminium

Al

14.52

2

10.00

26.9815382

53.9630764

Strunz 9th edition incl. updates

3.CB.05

3: Halide (Fluoride, Chloride, Bromide, Iodide)
C: Komplexe Halogenide
B: Insel-Aluminofluoride (Neso-Aluminofluoride)
05:Kryolithionit-Gruppe

Lapis Classification

III/B.03-010

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
B: Doppelhalogenide
3: mit [BF4] 1-, [SiF6] 2- und [AlF6] 3-

Classification by Hölzel

3.DD.140

3: HALIDES
D: Complex Halides
D: Fluoro-Aluminates
1: Cryolite-Group

Dana 8th edition

11.06.04.01

11: Halide Complexes; Alumino-fluorides
06: Halide Complexes; Alumino-fluorides with miscellaneous formulae

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Garnet supergroup  ⇒ Halide garnets (Z charge 3)

Optical Properties

Color

farblos, weiß

Streak color

weiß

RI value α / ω / n

1.340

Ri mean

1.340

2V angle

Isotropisch

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell parameters a (Å)

12.12

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°

Z

8

Volume (ų)

1780.36

X-Ray Powder Diffraction

4.28(100),
3.029(60),
2.711(40),
2.376(40),
2.213(50),
1.966(60),
1.917(20),
1.619(30)
XRD chart Cryolithionite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.50 - 3.00

VHN (Hardness Vickers)

68 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.77 (gemessen)

2.774 ( ρ calc. Mineralienatlas )

Instability

+++ H2SO4, + warme H2O

(Co-)Type locality

(Co-)Type locality

Grönland/Kommuneqarfik Sermersooq/Ivittuut (Ivigtut)/Kryolithlagerstätte (Cryolite deposit)

Preface

Author (Name, Year)

Ussing, 1904

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 146.

Grew, E.S., Locock, A.J., Mills, S.J., Galuskina, I.O., Galuskin, E.V., Halenius, U., 2012; Nomenclature of the garnet supergroup. American Mineralogist; preprint December 2012 - [Formel]

IMA group assignments

Other languages

Spanish

Criolitionita

English

Cryolithionite

French

Cryolithionite

German

Kryolithionit

Russian

Криолитионит

Alternative Name

Kryolithionite

German

Kryolthionit

CNMNC symbol

Symbol

Cyln

Locations with GPS information

IDs

GUSID (Global unique identifier short form) EqEzuxj5bEuUUs65lbw_0w
GUID (Global unique identifier) BB33A112-F918-4B6C-9452-CEB995BC3FD3
Database ID 2068