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Hydrokenoralstonite (Hydrokenoralstonit)

Pictures (15 Images total)

Ralstonit-Oktaeder
Views (Image: 1250026837): 7024
Ralstonit-Oktaeder

Bildbreite: 2,5 mm; Fundort: Kryolithlagerstätte, Ivigtut, Kitaa, Grönland

Copyright: Joachim Esche
Contribution: slugslayer 2009-08-11
Locality: Kryolithlagerstätte (Cryolite deposit) / Ivittuut (Ivigtut) / Kommuneqarfik Sermersooq / Grönland
Ralstonit
Views (Image: 1287255134): 1097
Ralstonit

Kristallgröße: 0,5 mm; Fundort: Kryolithlagerstätte, Ivigtut, Kitaa, Kommuneqarfik Sermersooq, Grönland

Copyright: Luigi Mattei
Contribution: slugslayer 2010-10-16
Locality: Kryolithlagerstätte (Cryolite deposit) / Ivittuut (Ivigtut) / Kommuneqarfik Sermersooq / Grönland
Ralstonit
Views (Image: 1244975936): 1221
Ralstonit

Bildbreite: 5 mm; Fundort: Zharchikhinskoye, Transbaikal, Fernost, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-14
Locality: Zharchikhinskoe / Transbaikalien, Region (Zabaykalsky Krai) / Sibirien, Föderationskreis / Russland
Ralstonit
Views (Image: 1285263248): 1062
Ralstonit

Bildbreite: 2 mm, Fundort: Le Cetine, Toskana, Italien

Copyright: Luigi Chiappino
Contribution: thdun5 2010-09-23
Locality: Le Cetine di Cotorniano Mine / Chiusdino / Siena, Provinz / Toskana (Toscana) / Italien
Ralstonit
Views (Image: 1391543719): 793
Ralstonit (SNr: A013138)

Oktaedrische farblose Kristalle, BB = 4,2 mm, Fundort: Arsuk Fjord, Ivittuut (Ivigtut), Kommuneqarfik Sermersooq, Grönland.

Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2014-02-04
Locality: Arsuk Fjord / Ivittuut (Ivigtut) / Kommuneqarfik Sermersooq / Grönland
Ralstonit
Views (Image: 1422267576): 433
Ralstonit

Bildbreite: 4 mm: Fundort: Kryolithlagerstätte, Ivigtut, Kitaa, Kommuneqarfik Sermersooq, Grönland

Copyright: Stephan Wolfsried
Contribution: Hg 2015-01-26
Locality: Kryolithlagerstätte (Cryolite deposit) / Ivittuut (Ivigtut) / Kommuneqarfik Sermersooq / Grönland

Collectors Summary

Color farblos, weiß
Streak color weiß
Hardness (Mohs) 4.5
Solubility +++ H2SO4
Crystal System kubisch, Fd3m

Additional information / Summary

Umbenannt von Ralstonit zu Hydrokenoralstonit nach der Eingliederung in die Pyrochlor-Supergruppe im Juli 2016.

Chemism

Chemical formula

NaxMgxAl2-x(F,OH)6·H2O

Chemical composition

Aluminium, Magnesium, Natrium, Fluor, Sauerstoff, Wasserstoff

Strunz 9th edition incl. updates

3.CF.05

3: Halide (Fluoride, Chloride, Bromide, Iodide)
C: Komplexe Halogenide
F: Gerüst-Aluminofluoride (Tekto-Aluminofluoride)
05:Ralstonit-Gruppe

Lapis Classification

III/C.03-060

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
C: Doppelhalogenide (meist mit OH,H2O)
3: Fluoride

Classification by Hölzel

3.DG.200

3: HALIDES
D: Complex Halides
G: Acuminite-Group

Dana 8th edition

11.06.12.01

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

Pyrochlore supergroup

Optical Properties

Color

farblos, weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

RI value α / ω / n

1.399

Ri mean

1.399

2V angle

Isotropisch

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

9.89

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

Volumne (ų)

967.362

X-Ray Powder Diffraction

5.74(100),
3.01(50),
2.88(80),
2.29(30),
2.04(30),
1.923(40),
1.765(90),
1.508(40)

XRD chart Hydrokenoralstonite

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)

4.5

VHN (Hardness Vickers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.55

Instability

+++ H2SO4

Preface

Name from

Benannt nach Rev. J. Grier Ralston (December 28, 1815 - November 10, 1880), von Norristown, Pennsylvania, USA, Endecker des Minerals.

Author (Name, Year)

Brush, 1871

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 465

Mineralogical Magazine, 2016, Vol. 80(5), pp. 915-922 [umbenannt]

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Hydrokenoralstonite

NaxMgxAl2-x(F,OH)6·H2O

kubisch : m3m : Fd3m

3.CF.05

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Prosopite

CaAl2(F,OH)8

monoklin : 2/m : C2/c

III/C.03-010

Thermessaite

K2[AlF3|SO4]

orthorhombisch : mmm : Pbcn

III/C.03-015

Chiolite

Na5Al3F14

tetragonal : 4/mmm : P4/mnc

III/C.03-020

Weberite

Na2MgAlF7

orthorhombisch : mm2 : I2mm

III/C.03-030

Usovite

Ba2CaMgAl2F14

monoklin : 2/m : C2/c

III/C.03-040

Karasugite

SrCa[Al(F,OH)7]

monoklin : 2/m : P21/c

III/C.03-045

Carlhintzeite

Ca2AlF7·H2O

triklin : 1 : C1

III/C.03-050

Rosenbergite

AlF[F0.5(H2O)0.5]4·H2O

tetragonal : 4/m : P4/n

III/C.03-055

Hydrokenoralstonite

NaxMgxAl2-x(F,OH)6·H2O

kubisch : m3m : Fd3m

III/C.03-060

Neighborite

NaMgF3

orthorhombisch : mmm : Pcmn

III/C.03-070

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Hydrokenoralstonite

NaxMgxAl2-x(F,OH)6·H2O

kubisch : m3m : Fd3m

3.DG.200

Yaroslavite

Ca3Al2F10(OH)2·H2O

3.DG.230

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Jarlite

Na(Sr,Na)7MgAl6F32(OH,H2O)2

monoklin : 2/m : C2/m

11.06.10.01

Calcjarlite

Na(Ca,Sr)3Al3(F,OH)16

monoklin : 2/m : C2/m

11.06.10.02

Jørgensenite

Na2Sr14Na2Al12F64(OH)4

monoklin : 2/m : C2/m

11.06.10.03

Chiolite

Na5Al3F14

tetragonal : 4/mmm : P4/mnc

11.06.11.01

Hydrokenoralstonite

NaxMgxAl2-x(F,OH)6·H2O

kubisch : m3m : Fd3m

11.06.12.01

Weberite

Na2MgAlF7

orthorhombisch : mm2 : I2mm

11.06.13.01

Usovite

Ba2CaMgAl2F14

monoklin : 2/m : C2/c

11.06.14.01

Yaroslavite

Ca3Al2F10(OH)2·H2O

11.06.15.01

Tikhonenkovite

SrAlF4(OH)·H2O

monoklin : 2/m : P21/c

11.06.16.01

Acuminite

SrAlF4(OH)·H2O

monoklin : 2/m : C2/c

11.06.17.01

Artroeite

Pb[AlF3(OH)2]

triklin : 1 : P1

11.06.18.01

Aravaipaite

Pb3[F3|AlF6]·H2O

triklin : 1 : P1

11.06.19.01

Other languages

German

Hydrokenoralstonit

English

Hydrokenoralstonite

Russian

Гидрокеноральстонит

old name

German

Ralstonit

Mineralogical Magazine, 2016, Vol. 80(5), pp. 915-922 [umbenannt]

Spanish

Ralstonita

English

Ralstonite

Mineralogical Magazine, 2016, Vol. 80(5), pp. 915-922 [umbenannt]

Russian

Ральстонит

Traditional Chinese

氟鈉鎂鋁石

Simplified Chinese

氟钠镁铝石

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

German pages

DeWikiPedia - search for: Hydrokenoralstonit
Google-Bilder-Suche - search for: Hydrokenoralstonit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Hydrokenoralstonit

English pages

Mindat - search for: Hydrokenoralstonite
Webmineral - search for:Hydrokenoralstonite
Handbook-of-Mineralogy - search for: Hydrokenoralstonite
RRUFF - Raman, XRD and other mineral data - search for: Hydrokenoralstonite
RRUFF - References and PDF downloads - search for: Hydrokenoralstonite
American-Mineralogist-Crystal-Structure-Database - search for: Hydrokenoralstonite
Athena - search for: Hydrokenoralstonite

Russian pages

Webmineral.ru - search for: Гидрокеноральстонит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Hydrokenoralstonit
Crystal-Treasure.com - search for: Hydrokenoralstonit
Bosse - search for: Hydrokenoralstonit

Locations with GPS information




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