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Aluminite (Aluminit)

Pictures (5 Images total)

Aluminit
Views (File:
1106937310
): 3629
Aluminit
Weiße traubig-knollige Aggregate von Aluminit; Stufengröße: 5 x 3,7 cm; Fundort: Newhaven, Sussex, England
Copyright: McSchuerf; Contribution: Mineralienatlas
Collection: McSchuerf
Location: UK/England/East Sussex Co./Newhaven
Mineral: Aluminite
Image: 1106937310
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Aluminit

Weiße traubig-knollige Aggregate von Aluminit; Stufengröße: 5 x 3,7 cm; Fundort: Newhaven, Sussex, England
Collection: McSchuerf
Copyright: McSchuerf
Contribution: Mineralienatlas 2005-01-28
Locality: Newhaven / East Sussex Co. / England / UK
Aluminit
Views (File:
1357215609
): 2784
Aluminit
Aluminit in knollenartigen Aggregaten von Morl, Halle an der Saale, Saxony-Anhalt, Deutschland. Größe der Aggregate zwischen 1x1 und 4x3 cm.
Copyright: raritätenjäger; Contribution: raritätenjäger
Collection: raritätenjäger
Location: Deutschland/Sachsen-Anhalt/Saalekreis/Petersberg/Morl
Mineral: Aluminite
Image: 1357215609
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Aluminit

Aluminit in knollenartigen Aggregaten von Morl, Halle an der Saale, Saxony-Anhalt, Deutschland. Größe der Aggregate zwischen 1x1 und 4x3 cm.
Collection: raritätenjäger
Copyright: raritätenjäger
Contribution: raritätenjäger 2013-01-03
Locality: Morl / Petersberg / Saalekreis / Sachsen-Anhalt / Deutschland
Aluminitknolle
Views (File:
1471170720
): 1263
Aluminitknolle
Aluminitknolle.Newhaven, East Sussex, England, UK. BB ca. 6 cm. 03.07.2016
Copyright: Nathan; Contribution: Nathan
Collection: Nathan
Location: UK/England/East Sussex Co./Newhaven
Mineral: Aluminite
Image: 1471170720
License: Usage for Mineralienatlas project only
Aluminitknolle

Aluminitknolle.Newhaven, East Sussex, England, UK. BB ca. 6 cm. 03.07.2016
Collection: Nathan
Copyright: Nathan
Contribution: Nathan 2016-08-14
Locality: Newhaven / East Sussex Co. / England / UK
Aluminit
Views (File:
1557068562
): 936
Aluminit
Halle(Saale), Sachsen-Anhalt D; Größe ca.3cm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Deutschland/Sachsen-Anhalt/Halle/Garten des Pädagogiums
Mineral: Aluminite
Image: 1557068562
License: Usage for Mineralienatlas project only
Aluminit

Halle(Saale), Sachsen-Anhalt D; Größe ca.3cm
Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2019-05-05
Locality: Garten des Pädagogiums / Halle / Sachsen-Anhalt / Deutschland
Aluminit
Views (File:
1569414868
): 845
Aluminit
"Garten des Waisenhauses zu Halle". Größe: 4.5 × 3.5 × 3.3 cm
Copyright: skibbo; Contribution: skibbo
Collection: Norbert Stötzel (Kristalle unterm Krönchen)
Location: Deutschland/Sachsen-Anhalt/Halle
Mineral: Aluminite
Image: 1569414868
License: Usage for Mineralienatlas project only
Aluminit

"Garten des Waisenhauses zu Halle". Größe: 4.5 × 3.5 × 3.3 cm
Collection: Norbert Stötzel (Kristalle unterm Krönchen)
Copyright: skibbo
Contribution: skibbo 2019-09-25
Locality: Halle / Sachsen-Anhalt / Deutschland

You find additional specimen at the Geolitho Museum

Collectors Summary

Color weiß
Streak color weiß
Hardness (Mohs) 1.00 - 2.00
Solubility +++ Säuren
Crystal System monoklin, P21/c

Chemism

Chemical formula

Al2(SO4)(OH)4·7H2O

Chemical composition

Aluminium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 344.1630724 u; Number of atoms in the formula: 36

Info

Empirical formula:

Al2(SO4)(OH)4·7H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

5.27

18

50.00

1.0079470

18.1430460
Oxygen

O

69.73

15

41.67

15.9994300

239.9914500
Aluminium

Al

15.68

2

5.56

26.9815382

53.9630764
Sulfur

S

9.32

1

2.78

32.0655000

32.0655000

Analysis wt%

Al2O3 : 29.87, SO3 : 23.37, H2O : 46.76 (Ref: Dana, 7th ed. 2)

Strunz 9th edition incl. updates

7.DC.05

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
C: mit mittelgroßen Kationen; Ketten von kantenverknüpften Oktaedern
05:Aluminit-Gruppe

Lapis Classification

VI/D.06-040

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
6: Mittelgroße Kationen

Classification by Hölzel

7.DE.630

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
E: Aluminite-Group

Dana 8th edition

31.07.04.01

31: Hydrated Sulfates Containing Hydroxyl or Halogen
07: Hydrated Sulfates Containing Hydroxyl or Halogen where (A+ B++)2 (XO4) Zq·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

0.011
Birefringence chart\! Aluminite title=Birefringence chart Aluminite

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

1.459

RI value β

1.464

RI value γ / ε

1.470

Ri mean

1.464

2V angle

Biaxial (+) 90°~

Optical Data Luminescence

Color LW-UV (365nm)

  

weiß

Color SW-UV (254nm)

  

weiß

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

11.444

Cell parameters b (Å)

15.849

Cell parameters c (Å)

7.440

Cell parameters a/b or c/a

0.722

Cell parameters c/b

0.469

Cell parameters α

90°

Cell parameters β

106.85

Cell parameters γ

90°

Z

4

Volume (ų)

1291.502

X-Ray Powder Diffraction

9.01(90),
7.93(100),
5.033(60),
4.868(60),
4.760(70),
3.742(70),
3.722(70),
1.991(50)
XRD chart Aluminite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

1.00 - 2.00

VHN (Hardness Vickers)

18 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.91 (gemessen)

1.77 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Deutschland/Sachsen-Anhalt/Halle/Garten des Pädagogiums

Preface

Author (Name, Year)

Haberle, 1807

References

J.J. Lerche (1730): Oryctographia Hallensis sive fossilium et mineralium in agro Halensi descriptio.- Inaugural-Dissertation, Halle (Erstbeschreibung als "Lac lunae, terra lenis et friabilis candidissima") Handbook of Mineralogy (Anthony et al.), 5 (2003), 9

Other languages

German

Aluminit

Spanish

Aluminita

French

Aluminite

English

Aluminite

Russian

Алюминит

Simplified Chinese

明矾

Simplified Chinese

矾石

Alternative Name

Alley stone

Hallite (of Delamtherie)

French

Hydrosulfate d'alumine

Native Argill

German

Reine Thonerde

Werner, A.G. (1780) Cronstedt’s Versuch einer Mineralogie, Übersetzt und Vermehrt. Vol. 1, part 1, Leipzig: 176.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 600.

Italian

Websterita

Websterite

CNMNC symbol

Symbol

A

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 5v1UA9A6y06evPav1fZypQ
GUID (Global unique identifier) 0354FDE6-3AD0-4ECB-9EBC-F6AFD5F672A5
Database ID 81