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Kahlerite (Kahlerit)

Pictures (5 Images total)

Kahlerit
Views (File:
1385384264
): 1216
Kahlerit
Bildbreite: 2 mm; Fundort: Absetzerhalde, Tagebau Lichtenberg b. Ronneburg, Thüringen, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Thüringen/Greiz, Landkreis/Ronneburg/Absetzerhalde
Mineral: Kahlerite
Image: 1385384264
License: Usage for Mineralienatlas project only
Kahlerit

Bildbreite: 2 mm; Fundort: Absetzerhalde, Tagebau Lichtenberg b. Ronneburg, Thüringen, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2013-11-25
Locality: Absetzerhalde / Ronneburg / Greiz, Landkreis / Thüringen / Deutschland
Kahlerit
Views (File:
1591975739
): 367
Kahlerit
Grube St.Christoph Breitenbrunn; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Deutschland/Sachsen/Erzgebirgskreis/Schwarzenberger Kuppel/Breitenbrunn/Grube St. Christoph
Mineral: Kahlerite
Image: 1591975739
License: Usage for Mineralienatlas project only
Kahlerit

Grube St.Christoph Breitenbrunn; Bildbreite 2,3 mm
Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-06-12
Locality: Grube St. Christoph / Breitenbrunn / Schwarzenberger Kuppel / Erzgebirgskreis / Sachsen / Deutschland
Kahlerit
Views (File:
1591975866
): 373
Kahlerit
Grube St.Christoph Breitenbrunn; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Deutschland/Sachsen/Erzgebirgskreis/Schwarzenberger Kuppel/Breitenbrunn/Grube St. Christoph
Mineral: Kahlerite
Image: 1591975866
License: Usage for Mineralienatlas project only
Kahlerit

Grube St.Christoph Breitenbrunn; Bildbreite 2,3 mm
Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-06-12
Locality: Grube St. Christoph / Breitenbrunn / Schwarzenberger Kuppel / Erzgebirgskreis / Sachsen / Deutschland
Kahlerit
Views (File:
1591975994
): 377
Kahlerit
Grube St.Christoph Breitenbrunn; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Deutschland/Sachsen/Erzgebirgskreis/Schwarzenberger Kuppel/Breitenbrunn/Grube St. Christoph
Mineral: Kahlerite
Image: 1591975994
License: Usage for Mineralienatlas project only
Kahlerit

Grube St.Christoph Breitenbrunn; Bildbreite 2,3 mm
Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-06-12
Locality: Grube St. Christoph / Breitenbrunn / Schwarzenberger Kuppel / Erzgebirgskreis / Sachsen / Deutschland
Kahlerit
Views (File:
1591976139
): 374
Kahlerit
Grube St.Christoph Breitenbrunn; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Deutschland/Sachsen/Erzgebirgskreis/Schwarzenberger Kuppel/Breitenbrunn/Grube St. Christoph
Mineral: Kahlerite
Image: 1591976139
License: Usage for Mineralienatlas project only
Kahlerit

Grube St.Christoph Breitenbrunn; Bildbreite 2,3 mm
Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-06-12
Locality: Grube St. Christoph / Breitenbrunn / Schwarzenberger Kuppel / Erzgebirgskreis / Sachsen / Deutschland

Collectors Summary

Color gelbgrün, zitronengelb
Streak color hellgelb
Hardness (Mohs) 2.5
Solubility +++ Säuren
Crystal System tetragonal, P42/n

Chemism

Chemical formula

Fe2+(UO2)2(AsO4)2·10-12H2O

Chemical composition

Arsen, Eisen, Sauerstoff, Uran, Wasserstoff

Unit weight: 1071.907954 u; Number of atoms in the formula: 50

Info

Empirical formula:

Fe(UO2)2(AsO4)2·11H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.07

22

44.00

1.0079470

22.1748340
Oxygen

O

34.33

23

46.00

15.9994300

367.9868900
Iron

Fe

5.21

1

2.00

55.8452000

55.8452000
Arsenic

As

13.98

2

4.00

74.9216020

149.8432040
Uranium

U

44.41

2

4.00

238.0289130

476.0578260

Analysis wt%

FeO : 6.57, UO3 : 52.66, As2O5 : 21.01, H2O : 19.76 (Ref: berechnet)

Strunz 9th edition incl. updates

8.EB.05

8: Phosphate, Arsenate, Vanadate
E: Uranylphosphate und Arsenate
B: UO2:RO4 = 1:1
05:Autunit-Gruppe

Lapis Classification

VII/E.01-050

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
E: Uranyl-Phosphate/Arsenate und Uranyl-Vanadate mit [UO2] 2+- [PO4]/[AsO4] 3- und [UO2] 2+-[V2O8] 6-, sowie isotype Vanadate (Sincosit-Reihe)
1: Autunit-Gruppe

Classification by Hölzel

8.EA.135

8: PHOSPHATES ARSENATES VANADATES
E: Uranyl (Phospates-Arsenates-Vanadates)
A: Tetragonal Uranyl (Phosphates-Arsenates)
1: C small-medium Novacekite-Zeunerite-Group

Dana 8th edition

40.02a.15.01

40: Hydrated Phosphates, etc
02a: Hydrated Phosphates, etc where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Autunite group

Optical Properties

Color

gelbgrün, zitronengelb

Streak color

hellgelb

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.002
Birefringence chart\! Kahlerite title=Birefringence chart Kahlerite

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

1.632

RI value γ / ε

1.634

Ri mean

1.633

2V angle

Uniaxial (-)

Crystallography

Crystal System

tetragonal

Class (H-M)

4/m

Space Group number

86

Space Group

P42/n

Cell parameters a (Å)

14.30

Cell parameters b (Å)

-

Cell parameters c (Å)

21.97

Cell parameters a/b or c/a

1.536

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volumne (ų)

4492.645

X-Ray Powder Diffraction

11.1(80),
5.55(50),
3.59(50),
3.53(100),
3.20(20),
2.53(20),
1.763(30),
1.603(40)
XRD chart Kahlerite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.22 (berechnet)

3.169 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Österreich/Kärnten/Sankt Veit an der Glan, Bezirk/Hüttenberg/Hüttenberger Erzberg/Lölling, Revier/Knichtelager

Preface

Author (Name, Year)

Meixner, 1953

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 273

IMA group assignments

 
Autunite group
 
 
 

 
 
Autunite
Ca(UO2)2(PO4)2·10-12H2O
orthorhombisch
Pnma

 
 
Bassetite
Fe2+[(UO2)(PO4)]2(H2O)10
monoklin
P21/n

 
 
Heinrichite
Ba(UO2)2(AsO4)2·10-12H2O
monoklin
P2/c

 
 
Hydronováčekite
Mg(UO2)2(AsO4)2·12H2O
tetragonal
P42/n

 
 
Kahlerite
Fe2+(UO2)2(AsO4)2·10-12H2O
tetragonal
P42/n

 
 
Nováčekite-II
Mg(UO2)2(AsO4)2·9H2O
tetragonal
P42/n

 
 
Rauchite
Ni(UO2)2(AsO4)2·10H2O
triklin
P1

 
 
Sabugalite
HAl(UO2)4(PO4)4·16H2O
monoklin
C2/m

 
 
Saléeite
Mg[(UO2)(PO4)]2(H2O)10
monoklin
P21/n

 
 
Torbernite
Cu(UO2)2(PO4)2·12H2O
tetragonal
P4/nnc

 
 
Uranocircite
Ba(UO2)2(PO4)2·12H2O
tetragonal
I4/mmm

 
 
Uranospinite
Ca(UO2)2(AsO4)2·10 H2O
tetragonal
I4/mmm

 
 
Zeunerite
Cu(UO2)2(AsO4)2·10-16H2O
tetragonal
P4/nnc

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Actuality: 22. Mar 2023 - 19:05:13

Other languages

German

Kahlerit

Spanish

Kahlerita

English

Kahlerite

French

Kahlerite

CNMNC symbol

Symbol

Kah

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