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Lausenite

Pictures (1 Images total)

Lausenit mit Hohmannit
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Lausenit mit Hohmannit

Beigefarbener Lausenit verwachsen mit gelbem Hohmannit. Fundort: Lehesten, Saalfeld, Thüringen. Bildbreite 4mm.

Collection: Yi Sun
Copyright: Yi Sun
Contribution: sun-mineral 2019-09-14
Locality: Lehesten / Saalfeld-Rudolstadt, Landkreis / Thüringen / Deutschland

Collectors Summary

Color weiß
Streak color weiß
Solubility +++ H2O
Crystal System monoklin, P21/m

Chemism

Chem­ical formula

Fe23+(SO4)3·6H2O

Chem­ical com­po­si­tion

Eisen, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 507.972004 u; Number of atoms in the formula: 35

Info

Empirical formula:

Fe2(SO4)3·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.38

12

34.29

1.0079470

12.0953640

Oxygen

O

56.69

18

51.43

15.9994300

287.9897400

Sulfur

S

18.94

3

8.57

32.0655000

96.1965000

Iron

Fe

21.99

2

5.71

55.8452000

111.6904000

Anal­y­sis wt%

Na2O : 1.23, Fe2O3 : 28.07, Al2O3 : 1.40, SO3 : 47.90, H2O : 20.64 (Ref: Dana, 7th ed. 2)

Strunz 9th edi­tion incl. updates

7.CB.70

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
C: Sulfate (Selenate, etc.) ohne weitere Anionen, mit H2O
B: Mit ausschließlich mittelgroßen Kationen
70:Lausenit-Gruppe

Lapis Clas­sifica­tion

VI/C.08-020

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
C: Wasserhaltige Sulfate, ohne fremde Anionen
8: Mittelgroße Kationen

Clas­sifica­tion by Hölzel

7.CC.100

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
C: Sulfates (-Anions +Water)
C: Alunogen-Group

Dana 8th edi­tion

29.08.01.01

29: Hydrated Acid and Sulfates
08: Hydrated Acid and Sulfates where (A)2 (XO4)3 · x(H2O)

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

max. Birefrin­gence

0.056

Birefringence chart\! Lausenite title=Birefringence chart Lausenite

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

1.598

RI value β

1.628

RI value γ / ε

1.654

Ri mean

1.627

2V angle

Biaxial (-) 85°

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

11

Space Group

P21/m

Cell param­e­ters a (Å)

10.679

Cell param­e­ters b (Å)

11.053

Cell param­e­ters c (Å)

5.567

Cell param­e­ters a/b or c/a

0.966

Cell param­e­ters c/b

0.504

Cell param­e­ters α

90°

Cell param­e­ters β

98.88

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

649.225

X-Ray Pow­der Diffrac­tion

5.55(40),
3.52(100),
3.38(100),
3.03(50),
2.85(50),
2.52(40),
2.284(40),
2.065(60)

XRD chart Lausenite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.49 (berechnet)

2.598 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O

Preface

Author (Name, Year)

Butler, 1928

References

American Mineralogist 90 (2005), 411

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

Lausenite

Fe23+(SO4)3·6H2O

monoklin : 2/m : P21/m

7.CB.70

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

Rhomboclase

(H5O2)+Fe3+(SO4)2·2H2O

orthorhombisch : mmm : Pnma

VI/C.08-010

Lausenite

Fe23+(SO4)3·6H2O

monoklin : 2/m : P21/m

VI/C.08-020

Kornelite

Fe23+(SO4)3·7H2O

monoklin : 2/m : P21/n

VI/C.08-030

Aluminocoquimbite

Al2Fe2(SO4)6(H2O)12·6H2O

trigonal : 3m : P31c

VI/C.08-035

Coquimbite

AlFe3(SO4)6(H2O)12·6H2O

trigonal : 3m : P31c

VI/C.08-040

Paracoquimbite

Fe4(SO4)6(H2O)12·6H2O

trigonal : 3 : R3

VI/C.08-050

Quenstedtite

Fe23+(SO4)3·10 H2O

triklin : 1 : P1

VI/C.08-060

Alunogen

Al2(SO4)3·17H2O

triklin : 1 : P1

VI/C.08-070

'Meta-alunogen'

Al4(SO4)6·27H2O

VI/C.08-080

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

Lausenite

Fe23+(SO4)3·6H2O

monoklin : 2/m : P21/m

7.CC.100

Alunogen

Al2(SO4)3·17H2O

triklin : 1 : P1

7.CC.120

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

Lausenite

Fe23+(SO4)3·6H2O

monoklin : 2/m : P21/m

29.08.01.01

Kornelite

Fe23+(SO4)3·7H2O

monoklin : 2/m : P21/n

29.08.02.01

Coquimbite

AlFe3(SO4)6(H2O)12·6H2O

trigonal : 3m : P31c

29.08.03.01

Paracoquimbite

Fe4(SO4)6(H2O)12·6H2O

trigonal : 3 : R3

29.08.04.01

Quenstedtite

Fe23+(SO4)3·10 H2O

triklin : 1 : P1

29.08.05.01

Alunogen

Al2(SO4)3·17H2O

triklin : 1 : P1

29.08.06.01

Other languages

German

Lausenit

Spanish

Lausenita

French

Lausenite

English

Lausenite

Russian

Лаусенит

Alternative Name

Rogersite (of Lausen)

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

German pages

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

English pages

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RRUFF - References and PDF downloads - search for: Lausenite
American-Mineralogist-Crystal-Structure-Database - search for: Lausenite
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Russian pages

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German pages

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