'._('einklappen').'
 

Wermlandite

Pictures (1 Images total)

Wermlandit
Views (Image: 1602674469): 139
Wermlandit

Schweden/Värmland, Provinz/Filipstad, Gemeinde/Långban, Distrikt. Bildbreite 0,6 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-10-14
Locality: Långban, Distrikt / Filipstad, Gemeinde / Värmland, Provinz / Schweden

Collectors Summary

Color grünlichgrau, bläulich
Hardness (Mohs) 1.5
Cleavages vollkommen
Solubility +++ Säuren
Crystal System trigonal, P3c1

Chemism

Chem­ical formula

(Ca,Mg)Mg7(Al,Fe3+)2(SO4)2(OH)18·12H2O

Chem­ical com­po­si­tion

Aluminium, Calcium, Eisen, Magnesium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 989.1085063 u; Number of atoms in the formula: 92

Info

Empirical formula:

(Ca0.75Mg0.25)Mg7(Al0.75Fe0.25)2(SO4)2(OH)18·12H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

4.28

42

45.65

1.0079470

42.3337740

Oxygen

O

61.47

38

41.30

15.9994300

607.9783400

Magnesium

Mg

17.82

7.25

7.88

24.3050600

176.2116850

Aluminium

Al

4.09

1.5

1.63

26.9815382

40.4723073

Sulfur

S

6.48

2

2.17

32.0655000

64.1310000

Calcium

Ca

3.04

0.75

0.82

40.0784000

30.0588000

Iron

Fe

2.82

0.5

0.54

55.8452000

27.9226000

Strunz 9th edi­tion incl. updates

7.DD.35

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
D: mit mittelgroßen Kationen; Lagen von kantenverknüpften Oktaedern
35:Woodwardit-Gruppe

Lapis Clas­sifica­tion

VI/D.14-025

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
14: Mittelgroße und sehr große Kationen

Clas­sifica­tion by Hölzel

7.DD.130

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
D: Sulfate-Hydrotalcites

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Hydrotalcite Supergroup  ⇒ Wermlandit-Gruppe

Optical Properties

Color

grünlichgrau, bläulich

max. Birefrin­gence

0.011

Birefringence chart\! Wermlandite title=Birefringence chart Wermlandite

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

1.493

RI value γ / ε

1.482

Ri mean

1.489

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3m

Space Group number

165

Space Group

P3c1

Cell param­e­ters a (Å)

9.303

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

22.57

Cell param­e­ters a/b or c/a

2.426

Cell param­e­ters c/b

-

Z

2

Volumne (ų)

1691.641

X-Ray Pow­der Diffrac­tion

11.16(70),
7.98(100),
5.62(40),
4.63(50),
3.89(40),
2.608(40),
1.541(40),
1.512(30)

XRD chart Wermlandite

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)

1.5

Density (g/cm³)

1.932 (gemessen)

1.942 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen

Insta­bil­ity

+++ Säuren

Preface

Author (Name, Year)

Moore, 1971

References

Lithos 4 (1971), 213

IMA group assignments

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

Shigaite

NaMn62+Al3[(OH)18|(SO4)2]·12H2O

trigonal : 3 : R3

7.DD.35

Honessite

(Ni1-xFe3+x)(SO4)x/2(OH)2·nH2O {x<0.5}{n<3x/2}

7.DD.35

Carrboydite

(Ni,Al)9(SO4)2(OH)18·10H2O

7.DD.35

Wermlandite

(Ca,Mg)Mg7(Al,Fe3+)2(SO4)2(OH)18·12H2O

trigonal : 3m : P3c1

7.DD.35

Woodwardite

(Cu0.75Al0.25)(SO4)0.125(OH)2·0.3H2O

7.DD.35

Motukoreaite

Mg6Al3(OH)18[Na(H2O)6](SO4)2·6H2O

trigonal : 3m : R3m

7.DD.35

Nikischerite

NaFe62+Al3[(OH)18|(SO4)2]·12H2O

trigonal : 3 : R3

7.DD.35

Mountkeithite

(Mg,Ni)11(Fe3+,Cr,Al)3(OH)24(SO4,CO3)3.5·11H2O

7.DD.35

'Zincaluminite'

Zn6Al6(SO4)2(OH)26·5H2O

7.DD.35

Glaucocerinite

(Zn1-xAlx)(SO4)x/2(OH)2·nH2O {x<0.5}{n>3x/2}

7.DD.35

Hydrohonessite

(Ni1-x Fe3+x)(SO4)x/2(OH)2·nH2O {x < 0.5} {n > 3x/2}

7.DD.35

Hydrowoodwardite

(Cu1-xAlx)(SO4)x/2(OH)2·nH2O {x<0.5}{n>3x/2}

trigonal : 3m : R3m

7.DD.35

'Zincowoodwardite'

7.DD.35

'Natroglaucocerinite'

NaZn5Al3[(OH)16|(SO4)2]·6H2O

trigonal : 3 : P3

7.DD.35

Zincowoodwardit-1R

[Zn1-xAlx(OH)2][(SO4)x/2·nH2O] {x = 0.32-0.50}

7.DD.35

'Zincowoodwardite-3R'

[Zn1-xAlx(OH)2][(SO4)x/2·nH2O {x=0.32-0.50}

trigonal : 3 : R3

7.DD.35

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

Metavoltine

K2Na6Fe2+Fe63+(SO4)12O2·18 H2O

trigonal : 3 : P3

VI/D.14-010

Motukoreaite

Mg6Al3(OH)18[Na(H2O)6](SO4)2·6H2O

trigonal : 3m : R3m

VI/D.14-020

'Natroglaucocerinite'

NaZn5Al3[(OH)16|(SO4)2]·6H2O

trigonal : 3 : P3

VI/D.14-021

Nikischerite

NaFe62+Al3[(OH)18|(SO4)2]·12H2O

trigonal : 3 : R3

VI/D.14-022

Shigaite

NaMn62+Al3[(OH)18|(SO4)2]·12H2O

trigonal : 3 : R3

VI/D.14-023

Wermlandite

(Ca,Mg)Mg7(Al,Fe3+)2(SO4)2(OH)18·12H2O

trigonal : 3m : P3c1

VI/D.14-025

Lannonite

HCa4Mg2Al4(SO4)8F9·32H2O

VI/D.14-030

Slavíkite

(H3O)3Mg6Fe15(SO4)21(OH)18·98H2O

trigonal : 3 : R3

VI/D.14-040

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

Motukoreaite

Mg6Al3(OH)18[Na(H2O)6](SO4)2·6H2O

trigonal : 3m : R3m

7.DD.100

Wermlandite

(Ca,Mg)Mg7(Al,Fe3+)2(SO4)2(OH)18·12H2O

trigonal : 3m : P3c1

7.DD.130

Alternative Name

Värmlandite

IMA Number

IMA 1970-007

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Вермландит

Mineral Dealer

German pages

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

Locations with GPS information