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Quenstedtite

Pictures (3 Images total)

Quenstedtit
Views (Image: 1384239292): 775
Quenstedtit

Bildbreite : 2 mm; Fundort : Richelsdorfer Hütte, Wildeck - Richelsdorf,; Richelsdorfer Gebirge, Hessen, Deutschland.
Collection: Werner Simon
Copyright: Werner Simon
Contribution: Steinkautz 2013-11-12
Locality: Richelsdorfer Hütte / Verhüttungsplätze / Richelsdorfer Gebirge / Hersfeld-Rotenburg, Landkreis / Kassel, Bezirk / Hessen / Deutschland
Quenstedtit
Views (Image: 1448529536): 442
Quenstedtit (SNr: A000025)

feinkristallin, körnige, weiße Kristalle von der Richelsdorfer Hütte, BB = 1,5 mm
Collection: Lithothek der Münchener Micromounter
Copyright: loparit
Contribution: Münchener Micromounter 2015-11-26
Locality: Richelsdorfer Hütte / Verhüttungsplätze / Richelsdorfer Gebirge / Hersfeld-Rotenburg, Landkreis / Kassel, Bezirk / Hessen / Deutschland
Quenstedtid
Views (Image: 1531229438): 251
Quenstedtid

als weiße Aggregate und Beläge in einer Schlackedruse. Das Stück stammt aus der Sammlung von Herrn Günther Schnorrer. BB ca. 3,5mm. Fundort: Deutschland/Hessen/Kassel, Bezirk/Hersfeld-Rotenburg, La...
Collection: gladhammar
Copyright: gladhammar
Contribution: gladhammar 2018-07-10
Locality: Richelsdorfer Hütte / Verhüttungsplätze / Richelsdorfer Gebirge / Hersfeld-Rotenburg, Landkreis / Kassel, Bezirk / Hessen / Deutschland

Collectors Summary

Color weiß, hellviolett, rot violet
Streak color hellviolett blau
Hardness (Mohs) 2.5
Solubility +++ H2O, Aufbewahren in einem versiegelten Behälter
Crystal System triklin, P1

Chemism

Chem­ical formula

Fe23+(SO4)3·10 H2O

Chem­ical com­po­si­tion

Eisen, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 580.0333 u; Number of atoms in the formula: 47

Info

Empirical formula:

Fe2(SO4)3·10H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

3.48

20

42.55

1.0079470

20.1589400
Oxygen

O

60.68

22

46.81

15.9994300

351.9874600
Sulfur

S

16.58

3

6.38

32.0655000

96.1965000
Iron

Fe

19.26

2

4.26

55.8452000

111.6904000

Anal­y­sis wt%

Fe2O3 : 27.66, SO3 : 39.83, H2O : 31.35, CaO : 0.40 (Ref: Dana, 7th ed. 2)

Strunz 9th edi­tion incl. updates

7.CB.65

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

Lapis Clas­sifica­tion

VI/C.08-060

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

Clas­sifica­tion by Hölzel

7.CC.220

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

Dana 8th edi­tion

29.08.05.01

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, hellviolett, rot violet

Streak color

hellviolett blau

Diaphane­ity (Trans­parency)

transparent

max. Birefrin­gence

0.047
Birefringence chart\! Quenstedtite title=Birefringence chart Quenstedtite

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

1.547

RI value β

1.566

RI value γ / ε

1.594

Ri mean

1.569

2V angle

Biaxial (+) 70°

Crystallography

Crystal Sys­tem

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell param­e­ters a (Å)

6.15

Cell param­e­ters b (Å)

23.77

Cell param­e­ters c (Å)

6.56

Cell param­e­ters a/b or c/a

0.259

Cell param­e­ters c/b

0.276

Cell param­e­ters α

94.17

Cell param­e­ters β

101.75

Cell param­e­ters γ

96.32

Z

2

Volumne (ų)

928.706

X-Ray Pow­der Diffrac­tion

5.78(90),
5.57(40),
5.34(40),
5.03(70),
4.19(90),
4.08(100),
3.80(80),
2.582(70)
XRD chart Quenstedtite

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)

2.5

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.14

2.074 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O, Aufbewahren in einem versiegelten Behälter

(Co-)Type locality

(Co-)Type locality

Chile/Atacama, Region (III. Region)/Copiapó, Provinz/Tierra Amarilla

Preface

Author (Name, Year)

Linck, 1888

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 572

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

Quenstedtite

Fe23+(SO4)3·10 H2O

triklin : 1 : P1

7.CB.65

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]

Kornelite

Fe23+(SO4)3·7H2O

monoklin : 2/m : P21/n

7.CC.200

Paracoquimbite

Fe4(SO4)6(H2O)12·6H2O

trigonal : 3 : R3

7.CC.210

Coquimbite

AlFe3(SO4)6(H2O)12·6H2O

trigonal : 3m : P31c

7.CC.211

Aluminocoquimbite

Al2Fe2(SO4)6(H2O)12·6H2O

trigonal : 3m : P31c

7.CC.213

Quenstedtite

Fe23+(SO4)3·10 H2O

triklin : 1 : P1

7.CC.220

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

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Квенштедтит

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