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Kulkeite

Additional Functions

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 2
Crystal System monoklin,

Chemism

Chem­ical formula

Na0.35Mg8Al(AlSi7)O20(OH)10

Chem­ical com­po­si­tion

Aluminium, Magnesium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 943.11105597 u; Number of atoms in the formula: 57.35

Info

Empirical formula:

Na0.35Mg8Al(AlSi7)O20(OH)10

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.07

10

17.44

1.0079470

10.0794700

Oxygen

O

50.89

30

52.31

15.9994300

479.9829000

Sodium

Na

0.85

0.35

0.61

22.9897702

8.0464196

Magnesium

Mg

20.62

8

13.95

24.3050600

194.4404800

Aluminium

Al

5.72

2

3.49

26.9815382

53.9630764

Silicon

Si

20.85

7

12.21

28.0855300

196.5987100

Strunz 9th edi­tion incl. updates

9.EC.60

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
60:Corrensit-Gruppe

Lapis Clas­sifica­tion

VIII/H.18-010

VIII: SILIKATE
H: Schichtsilikate
18: Tonminerale, regulär geschichtet; Montmorillonit-Gruppe

Clas­sifica­tion by Hölzel

9.EH.130

9: SILICATES
E: Phyllosilicates
H: Interstratificated Micas
1: Monoclinic Rectorite-Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

max. Birefrin­gence

0.009

Birefringence chart\! Kulkeite title=Birefringence chart Kulkeite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.552

RI value β

1.561

RI value γ / ε

1.561

Ri mean

1.558

2V angle

Biaxial (-) 24°

Crystallography

Crystal Sys­tem

monoklin

Cell param­e­ters a (Å)

5.319

Cell param­e­ters b (Å)

9.195

Cell param­e­ters c (Å)

23.897

Cell param­e­ters a/b or c/a

0.578

Cell param­e­ters c/b

2.599

Cell param­e­ters α

90°

Cell param­e­ters β

97.2

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

1159.543

X-Ray Pow­der Diffrac­tion

11.9(80),
7.90(100),
4.74(60),
3.38(80),
2.96(50),
2.55(60),
2.46(50),
1.533(100)

XRD chart Kulkeite

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

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2

VHN (Hard­ness Vick­ers)

32 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.78 (berechnet)

2.701 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Algerien/Aïn Defla, Provinz/Tell Atlas/Ksar el Boukhari/Derrag/El Mourdur Hill

Type mate­r­ial

Mineralogische Sammlung, Ruhr-Universität Bochum

Par­a­ge­n­e­sis of type mate­r­ial

Dolomit, Albit, Na-Phlogopit, Phlogopit, Quarz akzessorisch: Turmalin, Rutil, Pyrit

Preface

Author (Name, Year)

Abraham & Schreyer & Medenbach & Gebert, 1980

References

Fortschritte der Mineralogie Beihefte 58 (1980), 4

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

Dozyite

Mg7(Al,Fe3+,Cr)2[(OH)12|Al2Si4O15]

monoklin : m : Cm

9.EC.60

Kulkeite

Na0.35Mg8Al(AlSi7)O20(OH)10

9.EC.60

Tosudite

Na0.5(Al,Mg)6(Si,Al)8O18(OH)12·5H2O

9.EC.60

Aliettite

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

9.EC.60

Rectorite

(Na,Ca)Al4(Si,Al)8O20(OH)4·2H2O

9.EC.60

Saliotite

Na0.5Li0.5Al3[(OH)5|AlSi3O10]

monoklin : 2/m : C2/m

9.EC.60

Corrensite

(Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10·nH2O

9.EC.60

'Karpinskite'

(Mg,Ni)2Si2O5(OH)2

9.EC.60

Hydrobiotite

K(Mg,Fe2+)6(Si,Al)8O20(OH)4·nH2O

monoklin : 2/m : C2/m

9.EC.60

Cortesognoite

CaV2Si2O7(OH)2·H2O

orthorhombisch : mmm : Cmcm

9.EC.60

Lunijianlaite

Li0.7Al6.2(Si7AlO20)(OH,O)10

9.EC.60

Brinrobertsite

(Na,K,Ca)0.3(Al,Fe,Mg)4(Si,Al)8O20(OH)4·3.5H2O

9.EC.60

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

Lunijianlaite

Li0.7Al6.2(Si7AlO20)(OH,O)10

VIII/H.18-005

Saliotite

Na0.5Li0.5Al3[(OH)5|AlSi3O10]

monoklin : 2/m : C2/m

VIII/H.18-007

Kulkeite

Na0.35Mg8Al(AlSi7)O20(OH)10

VIII/H.18-010

Aliettite

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

VIII/H.18-020

Rectorite

(Na,Ca)Al4(Si,Al)8O20(OH)4·2H2O

VIII/H.18-030

'Tarasovite'

(Na,K,H3O,Ca)2Al4[(OH)2|(Si,Al)4O10]2·H2O

VIII/H.18-040

Tosudite

Na0.5(Al,Mg)6(Si,Al)8O18(OH)12·5H2O

VIII/H.18-050

Corrensite

(Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10·nH2O

VIII/H.18-060

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

Lunijianlaite

Li0.7Al6.2(Si7AlO20)(OH,O)10

9.EH.100

Dozyite

Mg7(Al,Fe3+,Cr)2[(OH)12|Al2Si4O15]

monoklin : m : Cm

9.EH.110

Kulkeite

Na0.35Mg8Al(AlSi7)O20(OH)10

9.EH.130

Rectorite

(Na,Ca)Al4(Si,Al)8O20(OH)4·2H2O

9.EH.140

Saliotite

Na0.5Li0.5Al3[(OH)5|AlSi3O10]

monoklin : 2/m : C2/m

9.EH.150

Aliettite

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

9.EH.170

Tosudite

Na0.5(Al,Mg)6(Si,Al)8O18(OH)12·5H2O

9.EH.180

Other languages

German

Kulkeit

English

Kulkeite

French

Kulkeite

Spanish

Kulkeíta

Russian

Кулькеит

IMA Number

IMA 1980-031

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

German pages

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

English pages

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

Webmineral.ru - search for: Кулькеит

Mineral Dealer

German pages

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